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Had a nice time sighting in / function testing a couple of my newer AR’s at the range the other day. I typically shoot on private land but bench shooting is a good way to get your guns out, put some rounds through them and make sure they are running good. For the most part there were no issues but any AR builder will tell you it only takes one small issue to throw a monkey wrench in there.

620 CIV Tactical SPR AERO Precision AR Pistol Vortex opticsClick to enlarge

The rifle has an upper built by CIV Tactical using receivers are from Tactical Firearms Solutions. CIV Tactical used their excellent 18″ SPR barrel and Matched Bolt that are known for getting some extremely low sub-MOA results. I used an older Bolt Carrier with the supplied bolt and figured everything would be fine. When the rifle wouldn’t eject a single round I knew there was something going on. Instead of just giving up and using the other AR I brought I decided to try to figure out was the issue was. After trying 2 different lowers, 4 different mags and 2 different types of ammo I decided to try a different BCG. Swapped it out and it ran like a Sewing Machine. I know the Matched Bolt is good as it was test fired with that exact Bolt so it’s pretty obvious I can narrow it down to the Bolt Carrier such as a leaky Gas Key. Looks like I threw in my own monkey wrench.  LoL  

The point is if you think logically through your failures and start eliminating possible issues, you can quite often move past the issues with the rifle and still get in some good trigger time. Oh, and bring some tools and small parts with you when test firing a rifle for the first time.  🙂

The rail on the SPR is a Parallax Tactical FFSSR rail. It also has an ATLAS Bipod with ADM mouth and the Stock is the LUTH-AR MBA-1 that you can buy from www.MidwestPX.com. The AR Pistol is all AERO Precision with an Odin Works 10.5″ Barrel, Primary Weapons CQB comp and a KAK Industry Super Sig Tube. Both guns have Vortex Optics…optics.

Father’s Day 2014 – Salient Arms

Posted on June 7th, 2014 by ar15news

Salient Arms International, well known for their high end Glock and AR-15’s, is offering their AR15 Matched (from one solid piece of billet aluminum) stripped upper and stripped lower receiver set on sale for Father’s Day at their lowest price of $375 USD shipped to your FFL (regularly $450 USD). Additionally, all orders will receive a Salient T-shirt with their order! This is a $40 USD value that is included while supplies last! Call Salient Arms at (805) 983-1200 to place an order. If they don’t answer they ask that you please leave a voicemail and they will call you back as they get tremendous call volume at times. Sale ends 06/13/14. 

Don’t forget to follow Salient Arms International on Facebook and Instagram to keep up on all of their products.

620 Salient Arms International Matched Billet Receiver Set 2

Father’s Day Sale 2014 – AERO Precision

Posted on June 7th, 2014 by ar15news

AERO Precision is offering a great Father’s Day Sale. Now through 6/16/2014 you can save 10% on all orders PLUS any orders over $50 will receive FREE SHIPPING as well. I don’t know about you but I never spend less than $50 at AERO Precision so this should be a no-brainer for you guys. Just use the code “dadsandgrads” at checkout when shopping at www.AEROPrecisionUSA.com.

AERO Precision Father's Day Sale 2014

Father’s Day Sale 2014 – Rainier Arms

Posted on June 6th, 2014 by ar15news

Rainier Arms has put together a really sweet Father’s Day Sale. The sale starts today and runs through Father’s Day (6/15/14). To start, all orders now through Father’s Day will receiver FREE SHIPPING. There are three additional sale items to look at too which are all listed below as well. One, any Gift Card purchases of $50 or more will receive a free Rainier Arms PAW Hat and a Rainier Arms SPORK. Two, anyone who purchases a Rainier Arms Forged Mil Spec Upper Receiver will receive a free RAC (Rainier Arms Compensator). Last but not least, anyone who purchases a Rainier Arms Forged Mil Spec Upper Receiver AND a Rainier Arms 16″ Mountain Series barrel will receive a free Rainier Arms RAPTOR charging handle. Click on any of the images below to be redirected right to that deal.

Rainier Arms Father's Day Sale 2014 1

Rainier Arms Father's Day Sale 2014 1

Rainier Arms Father's Day Sale 2014 1

DRD Tactical SRU762 QD Upper

Posted on May 30th, 2014 by ar15news

DRD Tactical SRU762 QD Upper

7.62 NATO Caliber

DRD Tactical announces the release of SRU762 Upper Receiver using our patented Quick take down barrel design for M110/SR25 7.62Nato caliber Rifles. It can be assembled from its hard-case or back-pack without any tools, in less than a minute.

620 SRU762-HC

620 SRU762-2

The SRU762 upper receiver is machined from billet 7075 Aluminum, barrel options are Hammer Forged chrome lined 16” & 18” 1/12 twist or Lothar Walther 16” & 18” 1/10 twist, comes with a MIL-STD 1913 QD 13” Rail with mounting holes on 3 sides for Magpul L-4 Rail Panels

620 SRU762-3

Visit us online at www.drdtactical.com

MSRP $1195

AERO Precision M4E1 Enhanced Upper Available for Purchase

Posted on May 21st, 2014 by ar15news

Last week we wrote about the new M4E1 Enhanced Upper and Handguards that AERO Precision was coming out with. These new upper feature an integrated mounting system for the new handguards which will make for an absolutely rock solid lock up. I just got word that the new M4E1 uppers are now in-stock and ready to purchase over at www.AEROPrecisionUSA.com.

620 AERO Precision M4E1 Enhanced Upper 1 620 AERO Precision M4E1 Enhanced Upper 1

The AR15 weapon system is an ever-evolving and modular platform. That weapon system has now been enhanced by Aero Precision into the new M4E1 platform. The M4E1 upper receiver is precision-machined to our specifications and features M4 feed ramps and handguard mounting platform. The rail mounting surface and barrel nut area provide a much stiffer system than a standard receiver, giving you more accuracy out of your rifle. Lightweight by design, stronger through superior engineering, the M4E1 delivers monolithic accuracy in a lightweight package.

Features:

  • Forged from 7075 T6 aluminum
  • Precision machined to M4E1 specs
  • M4 feedramps
  • Matte black hard coat anodized Mil 8625 Type 3 Class 2 or Cerakote coating
  • .250″ takedown pin holes
  • Laser engraved T-marks
  • Accepts standard AR15/M16 components
  • Handguard mounting platform is forged into the receiver
  • Comes assembled, with dust cover and forward assist installed
  • Barrel nut and wrench are included

Tactical Machining has a pretty sweet sale going on right now. Whether you’re an 80% type of builder or prefer to go the quicker route and build from a completely machined receiver set, they have you covered. For just $99 you can get an 80% lower and an upper in the raw. If you can swing an additional $10 you can get either an anodized 80% lower and upper set or get an anodized 100% machined lower and upper set for just $109. This sale will only be running for the next 3-4 weeks or until they sell out so don’t wait too long to jump on this deal. You can check the sale out for yourself at www.TacticalMachining.com

620 Tactical Machining BlackRifleBuildSale

NEW!! Primary Weapons Systems DI Uppers Now Available

Posted on May 3rd, 2014 by ar15news

Primary Weapons Systems has always been known for their amazingly reliable and accurate Piston AR’s. A little while ago they started taking their expertise in Piston AR’s and offering really nice, high quality DI parts and Accessories starting with rails and BCGs. Now they’re taking the next logical step and offering assembled uppers using their very high quality components. The heart of these new uppers are the awesome PWS Isonite 1:8 twist Barrels that are chambered in .223 Wylde. They are being offered in 3 different configurations. The DI-14 has a 14.5″ barrel and FSC556 muzzle device. The DI-14LE is the same as the DI-14 but with a TRIAD 556 muzzle device. The DI-16 has a 16″ barrel and FSC556 muzzle device. All 3 models will feature the PWS DI KeyMod rail and the PWS Upper Receiver with Forward Assist and Dust Cover. 

By now you’re probably bracing for sticker shock but you won’t need to. These awesome PWS DI Uppers are priced at just $699 which represents an amazing value. Check out the great video below or head on over to www.PrimaryWeapons.com to locate a local PWS dealer. I would also expect to see them in-stock soon at online dealers such as Weapon Outfitters.

620 PWS DI Stripped Upper 2

620 PWS DI Stripped Upper 1 copy

RifleGear Got Their Hands On Some Hard To Find AR’s & Parts

Posted on April 30th, 2014 by ar15news

Our friends at RifleGear just shot me an email letting me know they have some really cool, hard to come by, high end AR’s and Parts in-stock right now. If you have a taste for the finer things in life you will probably want to check out these two items listed below. 

The first item they mentioned is the really cool DDM4 ISR 300 Blackout rifle from Daniel Defense. The ISR model is an Integrally Suppressed Rifle that pairs a 10.3″ barrel and a permanently attached suppressor. By permanently attaching the suppressor to the barrel it brings the length of the barrel to 16″, which means you only need one tax stamp which is for the suppressor. This rifle was debuted at SHOT Show 2013 and has been a really hot seller for Daniel Defense. RifleGear has a limited number of these in-stock right now and has the price reduced down to $2,999 with FREE SHIPPING and a $50 RifleGear Gift Card with purchase. More details and pictures at www.RifleGear.com.

Daniel Defense DDM5 ISR 300BLK 1

Daniel Defense DDM5 ISR 300BLK 1

The other item they just got in is again one of those items that a lot of you might be patiently waiting for. The Mega Arms .308 Megalithic Uppers are the newest items to come from Mega Arms and they are absolutely awesome. RifleGear has the Rifle Length set in-stock which features an Ambi MATEN .308 billet lower and the new  Megalithic one piece upper. This upper even features an integrated level system, and hardened QD sockets. More details, pictures and purchase info at www.RifleGear.com.

Mega Arms Megalithic Rifle length MATEN Set 1

Mega Arms Megalithic Rifle length MATEN Set 1

Guest Post – CIV Tactical AR Pistol Tune-Up for NSZ85

Posted on April 19th, 2014 by ar15news

For those of you who have been following my newest AR-15 build on my YouTube channel, you will know that it has caused me some headaches. When taking on the hobby of building AR-15’s, sometimes things just do not go as planned. I try and create a learning experience for my viewers by showing my AR-15 builds when they work and also when they don’t.

To quote author Patrick Sweeney from his book, The AR-15: Volume 1, “The AR-15 is deceptive: It is both the easiest rifle to home-gunsmith, and can be the most maddening to get properly assembled and reliably functioning.” This proved especially true for me when I finished building my 10.5” AR-15 pistol. As I expected, the assembly went just fine and without a hitch. When it came to test firing it – well, that was a different story.

After three weeks (it could have been four) of Googling, forum surfing, troubleshooting and just plain scratching my head, I contacted my friend Ben from AR15news.com to see if he could offer any advice. We both agreed that I had tried just about everything I could and he told me, “call Dustin at CIV Tactical. Dustin is the man (my first visualization was “The Dude” when he said that) and will get it working for you, guaranteed.” So, I contacted Dustin, asked for his help and filled him in on what I was experiencing: failures to feed, failures to extract and failures to eject. Dustin said, “send it to me, this will be fun.” My AR-15 upper was on its way to him the very next day.

CIV Tactical received my upper and Dustin got to work preforming his complete blueprinting and accurizing service. This service included the following:

–          Barrels are lapped to the upper receiver (blueprinted)

–          Chamber polished

–          Gas port diameter checked

–          Feedramps checked

–          Barrel dimpled for proper gas block alignment

–          Match gauge headspaced

–          BCG fully inspected and tested

Because I wanted this to be a learning experience for both me and the individuals that follow me on social media, I had requested that Dustin do me a personal favor of taking some pictures of the process and sharing with me what he discovered was the ultimate issue. For my build, CIV Tactical started out by lapping my upper receiver face to perfectly match that of my barrel’s extension. Think of it as taking fraternal twins and turning them into almost identical ones; and instead of twins it’s two pieces of metal.

620 nsz85 Civ Tactical AR Pistol Tune-Up 1

Next, Dustin polished the chamber to an almost mirror finish. He did this by placing my barrel in his lathe running at 755 rpm while using a mandrel and 400 micron jeweler’s cloth. Apparently my chamber had rough tooling rings left over in it from the manufacturing process. It is not that uncommon, but per Dustin, “dude, that chamber was rough.”

620 nsz85 Civ Tactical AR Pistol Tune-Up 1

With my chamber now gleaming, Dustin placed my barrel back into his lathe to address the burr on the muzzle. “There’s a big burr right at the lands and grooves from the factory cut…it’s just not good enough, ya know?” While removing the burr, he also added a bevel to the crown and said, “This is what you want, a nice bevel right at the lands and grooves.” He followed up with another mirror-like polishing on the crown. Even with a 10.5” barrel, I could potentially gain some extra accuracy from this process.

620 nsz85 Civ Tactical AR Pistol Tune-Up 1

Dustin closely inspected and tested my gas block and barrel’s gas port. He concluded that my gas block was indeed leaking but my gas port size was correct. “Your gas block just doesn’t fit right“, he said. My barrel came from the factory with one gas block dimple already on it, which is normal. Because gas blocks come in different lengths, manufacturers will typically only place one dimple directly opposite of the gas port since almost all gas blocks with set screws will match up with it. Dustin replaced my gas block and placed a second dimple on the barrel to match up with it; “proper dimpling and alignment” achievement unlocked.

620 nsz85 Civ Tactical AR Pistol Tune-Up 1

I have found that a number of individuals disagree with me by being a proponent for always checking headspace no matter where the barrel, barrel extension and bolt come from or who makes them. Believe it or not, this was the first build where I didn’t check headspace – lesson learned. Dustin discovered that my headspace was too tight. Fortunately he was able to achieve proper headspace by swapping bolts and I am certainly glad he did. I almost danced when he said, “you’re right at 1.464” which is the go-gauge. You are correct now.”

620 nsz85 Civ Tactical AR Pistol Tune-Up 1

One of the last symptoms that my upper was experiencing from its apparent case of not-working-correctly-itus was its feed ramps. Both M4 feed ramps lined up correctly but the ramps in the barrel extension slightly protruded which created a slight lip. To alleviate any potential for stuck rounds and feeding issues, Dr. Dustin prescribed some fitting and polishing. Simple enough, but would ultimately lead to better function and reliability in the end.

620 nsz85 Civ Tactical AR Pistol Tune-Up 1

Dustin showed a lot of dedication to this project when I asked him why he was working on a Sunday and he said, “Yeah! Sunday gun-day! Only thing left is to test fire it.” I anxiously waited for him to let me know how everything functioned during the test and was surprised when he actually sent me a video of him rapid firing it without a single issue.

Dustin Test Firing

Even though I had to admit defeat by not being able to finish the troubleshooting battle, I remain aware that there is still a lot to be learned and experienced when it comes to building an AR-15. My experience with Dustin and CIV Tactical was definitely a learning experience and I am appreciative of the fact that Dustin took the extra time to take pictures and communicate with me about what problems he was discovering.

Maybe you or someone you know has an AR-15 that has come down with a dreaded case of not-working-correctly-itus like mine did. Or, maybe you want it to operate better or potentially achieve greater accuracy. If that is the case and you want more information on how to do so, you can visit the website for CIV Tactical or give them a call at 510-637-8650.

———————————————————————————————————————————————————-

About the author: Nate Schultz, or nsz85 as some may know him, works in the field of law enforcement, is a content producer for his YouTube channel and a writer for The Arms Guide. He is an avid shooter and hobbiest gunsmith. Most of Nate’s videos and articles are focused on helping new people who are just getting into firearms or want to learn more about how to work on them at home. If you are interested in following or contacting Nate, you can get in touch with him on Facebook, Twitter, Instagram or YouTube.

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