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Sage Dynamics Video Overview of the Railscales Karve

Posted on August 16th, 2016 by ar15news

Aaron from Sage Dynamics did a great overview of the new Karve handstop by Railscales. The Karve is a handstop that can be used on both M-LOK and KeyMod rails while maintaining an extremely small footprint thanks to the C O G (Common Overt Geometry) system that Railscales developed. The new Railscales Karve is available for purchase now at www.GetRailscales.com.

peppered pixel railscales karvePhoto by Peppered Pixel

Check out the great video below and be sure to subscribe to the Sage Dynamics YouTube, Facebook and Instagram channels.

Great Initial Results From The CBI 20″ .308 Match Barrel

Posted on July 28th, 2016 by ar15news

The other day I took some time to start sighting in my new 20″ .308 upper I just built for my FALKOR Defense rifle. Shot this awesome 100yd 3-shot sub-1/2-MOA ( .4935″ ) group with a 20″ Criterion Barrels match barrel. I realize it is just a 3-shot group but I’m very impressed so far. I was shooing some PNW Arms 175gr “Sniper” Match 7.62×51 ammunition. I had a few other really nice groups but this was my last and tightest group of the day. I only have room for a 100yd range on my property but my buddy has a 500yd gong that I think I need to ring with this baby.

Criterion Barrels 308 20 inch match barrel 1

Criterion Barrels 308 20 inch match barrel 4

Criterion Barrels 308 20 inch match barrel 2

Criterion Barrels 308 20 inch match barrel 3

This is a FALKOR Defense .308 ambi rifle with a CriterionBarrels 20″ .308 match barrel, Bravo Company USA charging handle and muzzle brake, Geissele SD-E trigger, Battle Arms short throw ambi safety, SLR Rifleworks 15″ Helix MLOK rail and Sentry adjustable gas block, ATLAS bipod, Magpul UBR stock, grip and mags, Rainier Arms UltraMatch .308 Nitride BCG with a KAK Industry dual ejector Bolt and a Vortex Optics Viper PST 4-16 FFP scope in the new Geissele Super Precision scope mount, MK Machining throw lever and scope level.

Testing The KAK Industry .308 Nitride BCG with Dual Ejectors

Posted on September 14th, 2015 by ar15news

The other day I was given the opportunity to run some rounds through the new KAK Industry .308 Nitride BCG with Dual Ejectors. Dual Ejectors are not brand new but I have never personally used a BCG in any caliber with this setup and wanted to figure out what it could do different than my standard BCGs. So here is how I tested out the new KAK Industry Dual Ejector .308 BCG. 

KAK 308 Dual Ejector BCG 7

KAK 308 Dual Ejector BCG 6

I have a bunch of linked (for Belt Fed) .308 SWAT SSA ammo that I bought a while back to shoot. This stuff ended up being pretty much junk. Basically I would remove it from the links, load it up in my Magpul LR-20 mags and try to run it through both of my .308 ARs. No matter what I did, every single shot would result in a failure to eject. Not sure if it was just too dirty ( which it was quite dirty) or what but neither of my .308s could run it.

KAK 308 Dual Ejector BCG 6

So yesterday I unlinked a bunch of the .308 SWAT SSA and set it aside. I then grabbed some 149gr Federal XM80CL which always runs perfect and loaded up some mags.

KAK 308 Dual Ejector BCG 6

I had already tuned this guns adjustable gas block but I wanted a fresh slate, so to start I shut my SLR Rifleworks adjustable gas block OFF. Started shooting the Federal and gradually opened it up until it was just enough to eject the Federal ammo and hold the bolt open on the last round. I had it right where it should be and not over gassed so it would be a great test when we switched to the crap .308 SWAT SSA ammo.

Grabbed two mags of the .308 SWAT SSA ammo which has NEVER run right in any of my .308s. Left the adjustable gas block right where it was using my standard BCG. Sure enough, first 5 shots were failure to eject. I figured I knew where this was going so it was time to swap out the BCG and use the KAK Industry Dual Ejector BCG. proceeded to fire off 35 straight rounds of the .308 SWAT SSA without a single malfunction. No changes were made except for the BCG swap. The dual ejector setup is the only thing that could have made a huge difference from what I can tell.

KAK 308 Dual Ejector BCG 6

KAK 308 Dual Ejector BCG 6

KAK 308 Dual Ejector BCG 6

When I set out to shoot this rifle yesterday, I wasn’t sure exactly what the outcome would be. There was a chance that nothing would change but after successfully shooting  ammo that I was previously unable to due to Failure To Extract, I am sold!

This BCG features a fully machined Extractor and Gas Key. No MIM parts on this thing at all. The Bolt is 9310 and the carrier is 8620 with a Black Nitride (Melonite, QPQ, etc. All the same thing.) finish inside and out for superior corrosion resistance and lubricity. The Carrier itself has the facetted cuts, forward assist serrations and a correct auto sear trip location (for you lucky guys with an SOT). The Bolt features the dual Ejector setup, is MP tested and marked and the fully machined extractor also has a rubber o-ring helper to ensure reliable extraction.

At just $180, I don’t know you will find a better deal anywhere. You can head on over to www.KAKIndustry.com and get on their email notification list so you can snag one of these as soon as they become available.

Build Details: Quarter Circle 10 Glock Compatible 9mm AR

Posted on September 10th, 2015 by ar15news

For a few years now, I have wanted to build a 9mm AR that takes Glock magazines. Mainly because the handgun I carry every day is a Glock 19. About a month ago I finally built my 9mm AR and it has been awesome. From the first round down the pipe it has run like a sewing machine with zero failures and the bolt hold open on last round is even working. Since then I have had a ton of questions asking me what specific parts I used in my build so I wanted to put all of the details together in on place for people to see and get information from. Once I have had a chance to put a ton more round through it I will follow up with a review as well.

QC10 9mm Build 0

My build started with Quarter Circle 10. They seem to be leading the pack in innovation regarding pistol caliber AR’s. They offer a Glock Small Frame lower for 9mm, 40SW, 357Sig, a Glock Large Frame lower for 45ACP and 10mm and a Colt 9mm lower as well as bolts and barrels for these as well. I wanted my AR to take the same mags as my Glock 19 so I went with the stripped Glock Small Frame 9mm Lower, 9mm BCG and 9mm 7.5″ barrel. Any AR-15 upper will do but I use a Rainier Arms mil spec forged upper minus forward assist. QC10 will be coming out with their own side charging upper with pistol caliber ejection port soon too. I also used an ALG Defense ACT trigger and need to upgrade to an ambi safety soon.

QC10 9mm Build 0

I covered the barrel with an SLR Rifleworks 8″ Solo Ultra Lite M-LOK rail. SLR rails are becoming one of my personal favorites. With such a short rail I decided to put an Arisaka Defense M-LOK Finger Stop underneath it. Its just small enough to not be in the way but big enough to keep your hand from getting too far forward. You may have noticed already but the QC10 barrels are straight blow back and do not require a Gas Tube or Gas Block.

QC10 9mm Build 2

QC10 9mm Build 2

For the muzzle device I chose the new 9mm Linear Comp from Kaw Valley Precision. I have used KVP’s Linear Comps for 300BLk and 5.56 before and the work great. Now they offer the same product in a 9mm version with a 1/2×28 thread pitch which is what I needed for the QC10 barrel. The fact that my barrel was shorter than my rail made the KVP linear comp a no brainer but it also looks sweet only sticking half way out the rail.

QC10 9mm Build 2

For my optic I chose a Vortex Optics RAZOR 3MOA red dot and mounted it to a Cross Machine Tool red dot sight mount. This is a nice light weight, compact optic setup that I feel has very fast target acquisition.

QC10 9mm Build 5

One item I recently installed was the Law Tactical Gen3 Folding Stock Adapter. At the moment I have this gun set up as an AR Pistol but will be converting it to a registered SBR with a stock soon. I love how compact the folding stock adapter makes this for transport. I can fit it in a small backpack, bag, case, etc without having to separate the upper and lower. It is quickly ready to shoot by flipping the buffer tube straight as you remove it from its concealment.

QC10 9mm Build 6

QC10 9mm Build 7

I was able to remove the extra weight at the rear of the carrier by removing the large roll pin and sliding it out. That is where the carrier extension for the Law Tactical Folding Stock Adapter goes.

QC10 9mm Build 7

The Law Tactical Gen3 Folding Stock Adapter has a lowered hinge to keep it away from your knuckles but just to be sure I am using a Fortis Manufacturing Hammer charging handle which has a really nice sized lever on it. The Hammer is one of my go to charging handles. Great build quality and affordable. 

QC10 9mm Build 7

Originally I started out with a standard carbine buffer spring and carbine buffer combo. It worked just fine but the guys at QC10 told me they recommend a heavier buffer, somewhere in the 5-6 ounce range to slow the carrier down a bit. I installed a Damage Industries 5.4 ounce H3 buffer and it continues to run perfect. 

QC10 9mm Build 7

Aside from a custom mag release and bolt catch assembly, the QC10 lower takes normal mil spec parts kits. You can see the Bolt Catch itself is mil spec but it is actuated by a pre-installed lever that contacts the magazine follower. This tends to be an issue with some mags as the spring pressure isn’t always strong enough to press the lever up and activate the bolt catch. This can be remedied by installing Wolf High Power springs inside the magazine. I bought a couple of SGM Tactical 33rd magazines from AIM Surplus and they seem to have better springs than the OEM ones. So far they are activating the LRBHO (last round bolt hold open) every time. 

QC10 9mm Build 7

So, there you have it. That’s pretty much my build in a nut shell. As I always tell people who are intimidated with building their own AR, “Its easier than you think”. You’ll love the increased range and accuracy you get out of a 9mm AR and being able to carry one type of mags to feed both your Primary and Secondary is awesome. Let me know if you guys have any questions or comments.

QC10 9mm Build 7

NEW!! BCM­ KeyMod Rail Covers Are In and They Are Awesome

Posted on July 22nd, 2015 by ar15news

If you’ve been active on social medial lately you’ve probably seen some sneak peeks at the new BCM (Bravo Company Mfg) super low profile KeyMod rail covers. For those of you who have been anxiously waiting to get some for yourself, the wait is now over. The new BCM­ KeyMod Rail Panels are now available in a kit that consists of five 5.5 inch long covers that will fit any KeyMod rail. I got my hands on a few of them and immediately put them on my BCM 16″ ELW upper with a BCM KMR 13″ rail.

BCM KeyMod Rail Panel Kit 1

Each BCM KeyMod Rail Panel will cover 7 KeyMod slots but can be cut to any shorter length to fit in shorter runs if needed. For instance, on my BCM upper I have their KAG (Kinesthetic Angled Grip) installed and have 4 KeyMod slots open in front of it. I only needed a short piece to cover where my index and middle fingers contact the rail so I grabbed my super sharp stabby thing from Matt Helm Knives and cut a two slot section to go there and the remaining 5 slots were installed on the side behind my BCM KeyMod 1913 Light Mount.

BCM KeyMod Rail Panel Kit 2

BCM KeyMod Rail Panel Kit 2

The BCM KeyMod Rail Panels are more than just a cool looking rail cover for open KeyMod slots. They offer an extreme increase in grip due to the aggressive texture. The texture on the covers actually reminds me a lot of grip tape but doesn’t feel like it will tear your hands up. If you look close you can see the BCM and Star logo on the cover.

BCM KeyMod Rail Panel Kit 2

BCM KeyMod Rail Panel Kit 2

The BCM 16″ ELW upper with the 13″ KMR is a super light weight, durable and accurate upper. Adding the new rail covers is a small add-on but an enhancement none the less. I will be adding more of the BCM­ KeyMod Rail Panels to my other KeyMod rails and you can too. BCM currently has the black covers in-stock for just $9.95 per 5 panel kit. Soon they will be offering FDE, OD Green and Foliage as well. Head on over to www.BravoCompanyUSA.com to order some for yourself.

ZeroBravo Inc REOS (Rapid Engagement Offset Sights)

Posted on July 16th, 2015 by ar15news

As many of you are already know, high power scopes are great for distance shooting but they are not great for quick target acquisition at closer range. For this reason a pair of offset sights can be an invaluable tool on your rifle with magnified optics. I’ve been running the ZeroBravo Inc. REOS or Rapid Engagement Offset Sights on my Cross Machine Tool AR-10 for some time now and I wanted to give you guys a look at my setup and let you know what I think of them. 

ZeroBravo REOS 1

The REOS are a two-piece ring that is designed to fit around the body of the scope on your SPR, DMR, Sniper Rifle, etc. With the REOS you get two rings and each ring has a small ghost ring aperture that sticks out to the side. You place one in front of the windage and elevation knobs and one behind them as you can see in the picture below. These two rings now form a front and rear offset sight. I usually shoot right handed so I installed mine on the right side of the scope but they can easily be mount on the left side for left handed shooters.

ZeroBravo REOS 1

ZeroBravo REOS 1

The REOS are available in 1 inch, 30mm and 34 mm size rings. My Vortex Optics Viper PST 6-24 has a 30mm tube so that is what I used. Once installed its basically time to hit the range to get them aligned correctly and zero’d. Per the directions from Zero Bravo, I rotated the REOS counter clockwise until the ghost rings were visible just under the windage turret on my scope. You can verify that your rings are in the correct spot by picking up your rifle and rotating it about 45 degrees to bring the ghost rings into your line of sight. 

ZeroBravo REOS 1

From here it is a matter of engaging a target that is within the range you feel you would need to use them. I suggest 20-25 yards. You can make fine sight adjustments by loosening one of the rings and rotating it slightly until your point of aim matches your point of impact.

ZeroBravo REOS 1

Overall I have zero negative things to say regarding the REOS. They function exactly as advertised if not better. The ZeroBravo REOS are basically so simple they have everyone who tries them thinking…”Why didn’t I think of that”.

At first glance I was worried that they would be in the way and stick out too far from the scope but that concern was quickly laid to rest. As you can see in the pictures above the REOS are actually more compact than the windage knob of my scope and if you install them correctly do not cause any issues with access to the windage knob. So far I have been able to repeatedly hit targets out as far 40-50 yards with the REOS with no problem, however it is much easier at closer distances. One thing I personally plan to do is put a bit of high visibility white paint in the aperture of the REOS for even quicker sight alignment. 

Bottom line, if you are looking for an effective, affordable, light weight and ambidextrous set of offset sights for your rifle, the ZeroBravo Inc REOS are where it’s at. You can purchase them directly from ZeroBravo at www.ZeroBravo.com.

First Look – Rainier Arms AVALANCHE Ambi Charging Handle

Posted on July 9th, 2015 by ar15news

A few months back we were told that Rainier Arms was developing a brand new ambi charging handle that would be 110% brand new, built from the ground up to the be the best Ambi C.H. on the market. That sounded like a pretty tall order but if anybody could do it, it would be the guys at Rainier Arms. For years they have had their finger on the pulse of the AR-15 market, helping them introduce items that appeal to the masses without sacrificing function or quality. Fast forward to literally the past few weeks and the new Rainier Arms ambi charging handle has come to life. Meet the AVALANCHE!

Rainier Arms Avalanche Ambi Charging Handle 1

The idea of an ambi charging handle is nothing new and there are lots of options to choose from. Most of the ambi charging handles on the market are very solidly made and function well. What Rainier Arms realized from the time they started designing the AVALANCHE is that many customers chose to purchase an ambi charging handle based on how it looks knowing that most are going to perform well. This brings up one of the most exciting features of the AVALANCHE which is that the end user can install different looking handles on the charging handle making it unique to their taste. 

Rainier Arms Avalanche Ambi Charging Handle 1

Currently I believe there are 3 different style extended handles and a few different colors for each. The AVALANCHE I was able to get my hands on features the round knurled handles. These are held in place by a screw with Loctite on the end and a set screw underneath the handle to guarantee its not going anywhere. 

Rainier Arms Avalanche Ambi Charging Handle 1

Rainier Arms Avalanche Ambi Charging Handle 1

The AVALANCHE is machined from 7075-T6 aluminum for a super strong main housing and shaft with a Stainless Steel latch which won’t wear down over years of use. The latch and both handles make up the moving parts of the charging handle and all pivot on beefed up roll pins that are capable of taking any abuse you give it.

Rainier Arms Avalanche Ambi Charging Handle 1

Rainier Arms Avalanche Ambi Charging Handle 1

So far so good. I’m really excited to be able to put the AVALANCHE to good use. Rainier Arms has hit the nail on the head with a super solid design and the idea to allow the end user to change the look of their charging handle whenever they want is genius. My first impression of the AVALANCHE definitely ranks it just as good as other ambi charging handles on the market in function and feel but none can compare when it comes to customization. Look for the AVALANCHE to be available for purchase very soon from www.RainierArms.com.

Low-Pro KeyMod Bipod Mount from Impact Weapons Components

Posted on July 6th, 2015 by ar15news

For a while now I’ve been wanting to purchase a couple more Harris bipods and pair them with the Impact Weapons Components KeyMod Bipod Mount. About a month ago I happened to be messing around on the Impact Weapons Components website and saw that they now carry Harris bipods and couldn’t help myself. I purchased two bipods and two mounts. Now that I’ve had them installed and using them for a while I wanted to do a quick writeup on the two different rifles I have them installed on.

IWC KeyMod Bipod Mount 1

INSTALLATION

Aside from having to remove the rail (in most circumstances), the installation was very simple. You have the KeyMod Bipod Stud and two metal snap rings. The IWC KeyMod Bipod Mount is CNC’d from Stainless Steel with a Melonite finish and weighs less than 1 ounce.

IWC KeyMod Bipod Mount 1

Place the Bipod Mount into the large circle portion of the desired KeyMod slot as shown below. Once in place, drop one of the metal snap rings over the shaft of the Bipod Mount work the snap ring around the flared portion and down into the groove closest to the surface of your handguard.

IWC KeyMod Bipod Mount 1

IWC KeyMod Bipod Mount 1

IWC KeyMod Bipod Mount 5a

THE SPR

First is the obvious setup which would be on a rifle with a higher powered scope such as an SPR or DMR. I built an 18″ SPR using a Mega Arms billet set and barrel with a Fortis Mfg 14″ Switch KeyMod rail. Instead of installing some adapters and rail sections I opted to install the IWC KeyMod Bipod Mount and Harris Bipod. This is an absolutely awesome, rock solid setup. There’s zero wobble and it looks pretty awesome. This is pretty much what this product was designed for and it shows. I’ve been shooting this SPR with the Bipod quite a bit lately and love it.

IWC KeyMod Bipod Mount 1

IWC KeyMod Bipod Mount 1

IWC KeyMod Bipod Mount 1

THE NON-SPR

One of the most important features of the IWC KeyMod Bipod Mount is how small it is. In fact it is so small that I started thinking about putting it on a rifle that I wouldn’t normally use with a Bipod but could throw one on in a pinch. This 16″ AR has just a 1-4 optic and a Vertical Forward Grip. I’ve also installed the Bipod Mount a few KeyMod slots in-front of the Vertical Grip which actually works very well as a super low profile Handstop while not in use with a Bipod. 

IWC KeyMod Bipod Mount 1

IWC KeyMod Bipod Mount 1

If the need arises, in a matter of seconds I can install a Bipod on this rifle turning it into a completely different beast. Now instead of a run and gun rifle it is capable of engaging and making longer range shots. 

IWC KeyMod Bipod Mount 1

IWC KeyMod Bipod Mount 1

If you couldn’t tell already, I really like the IWC KeyMod Bipod Mount. It is very inexpensive, light weight and versatile. When I purchased mine, I used our “ar15news” discount code (it’s technically for you guys but I used it too 🙂 ) to save 5% and got the bipod for $68 and the mount for $8 ($76 total) which I think is a bargain. If you’re looking for something similar to this you can check it out for yourself at www.ImpactWeaponsComponents.com.

Overview / Initial Impressions of the AREA 53 Billet Lowers

Posted on June 30th, 2015 by ar15news

We were given the chance recently to take a look at a couple of lowers from AREA 53. AREA 53 is a company that I’ve heard of and seen pictures of their products but really wasn’t that familiar with. They primarily focus on billet uppers and lowers including many different models and customization options for their billet lowers. Below I’ve included some pictures of the AREA 53 billet lowers I have that will eventually get built up into complete lowers.

PACKAGING

The packaging for the AREA 53 lowers is very cool. The boxes have the AREA 53 logo on the outside and cutouts for the lowers on the inside. The cutout hugs the lowers very tight to keep them from getting damaged in shipping. The two lowers I have are the AR-15 “El Jefe” and AR-10 “El Capitan – Challenge Coin”. 

AREA 53 Billet Lowers 1

AREA 53 Billet Lowers 1

AREA 53 Billet Lowers 1

AREA 53 Billet Lowers 4

AR-15

The AR-15 model has a large AREA 53 logo on the right side mag well as well as an ambi bolt release. The finish is very clean and consistent with no sharp edges. It also features different selector markings where instead of machining in the markings they recessed the area around them so the “Auto – Fire – Safe” are raised. 

AREA 53 Billet Lowers 4

AREA 53 Billet Lowers 4

AR-10

The AR-10 model is very similar to the AR-15 model with exception of the larger mag well. The AR-10 model we received is also a different model that gives you a place to install a challenge coin on the right side of the mag well. These can be pretty cool if you have a neat Challenge Coin to put in them. They offer the Challenge Coin model in both AR-15 and AR-10 models. The AR-10 model also features an ambi bolt release as well. The finish on the AR-10 model is equally as nice and the anodizing is nice and consistent.

AREA 53 Billet Lowers 4

AREA 53 Billet Lowers 4

SPECIAL FEATURES

As mentioned before, both the AR-15 and AR-10 billet lowers from AREA 53 feature an ambi bolt release. The ambi bolt releases come pre-installed and function very smooth. 

AREA 53 Billet Lowers 4

Both lowers also feature a threaded bolt catch pin. The bolt catch pin is notoriously the most annoying roll pin to install on an AR so any time its replaced with a threaded bolt catch pin is a great thing. Another feature not shown is the upper tensioning screw that is present on both models.

AREA 53 Billet Lowers 4

The front of the AREA 53 mag wells have been contoured to give you the ability to use it as a grip for your support hand. It also gives the lowers a nice look as well. 

AREA 53 Billet Lowers 4

AREA 53 Billet Lowers 4

Our initial impressions parallel all of the very positive things we’ve heard from others who have used the AREA 53 billet receivers for their builds. AREA 53 appears to take great care in making sure their lowers look and feel great. A couple of things I would love to see AREA 53 offer are 45 degree selector compatibility and possibly and ambi mag release but the lowers are very capable as is. Pretty soon we’ll get these lowers built up and make sure they function as well as they look which I’m quite sure they will. If you’re interested in using the AREA 53 lowers in your next build, head on over to www.AREA53.com.

AREA 53 Facebook
AREA 53 Instagram

Recently I started a new build. It was centered around a few key components, the Rainier Arms Mod3 billet receiver set, Rainier Arms 16″ .223 Wylde barrel made from a Rock Creek Blank, the LANTAC USA E-BCG and the new Fortis Manufacturing 14″ REV II MLOK rail. I just recently finished this build and will begin the process of shooting and reviewing it. Until then I wanted to give you an initial impression of the new REV II MLOK rail.

I have used many Fortis Manufacturing REV rails over the past few years and really like them a lot. Lately Fortis has come out with a few new rails including the new REV II rails which look great. As you would assume they are a modified version of the original REV rail that deletes the bottom picatinny rail section and forward side rail sections for a super sleek design, lighter weight and more flexibility in mounting your KeyMod or MLOK accessories. 

Fortis REV II MLOK 1

INSTALLATION

The REV II rails mount directly to a Mil Spec AR-15 barrel nut with a rock solid clamp just like the original REV rail. This type of mount is great for a few reasons. One, it creates an insanely solid union between the upper and rail. It also makes it easier for users to upgrade from the standard plastic “Glacier Guard” or other hand guards that use a Delta Ring as they will not need any armorers tools to remove the old barrel nut and install a proprietary barrel nut. Just cut the Delta Ring off, remove the spring, install your low profile gas block and your REV II rail will be on in minutes. Installation of accessories can be done while the rail is installed but can be done much easier by quickly removing the rail instead of installing them while on the rifle.

Fortis REV II MLOK 1

Fortis REV II MLOK 1

Fortis REV II MLOK 1

FIT AND FINISH

Fit and finish on the Fortis Manufacturing rails is second to none with a very nice dark black Type III Hard Coat Anodizing, smooth edges and aggressive lines. Not to mention they just look stinking sexy! As you can see in the picture below I also used the Fortis Manufacturing Low Profile Gas Block which looks great with its similar lines.

Fortis REV II MLOK 1

Fortis REV II MLOK 1

FINAL THOUGHTS

Overall I am very impressed with the Fortis Manufacturing REV II rail and would put them very high on the “Recommended List”. They offer these in both KeyMod and MLOK versions all the way from 7″ long to 14″ long.  So far there really isn’t anything I would say I don’t like about the rail. One note I would make is that anti-rotation tabs are a great feature but as you may already know, not all  billet uppers will accommodate them unless they manufacture of that upper has designed it to work with a rial with anti-rotation tabs. This is not an issue with the rail but more of an issue with manufacturers of billet uppers. The Fortis Billet Upper and Rainier Arms Billet Upper work great with them and many others will too. Check out the entire build below. Once I’ve had some time behind the trigger on this build I will update with more reviews on the different components.

Fortis REV II MLOK 1

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