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First Look – SI Defense .308 Ambi Rifle Build

Posted on February 17th, 2015 by ar15news

Over the past few months we’ve had the opportunity to work with the guys from SI-Defense in helping spread the word about their new products including their new .308 billet receiver set that features “mirrored ambi controls”. Remember that term as you’ll see what we mean soon. Now that the .308 Ambi receiver sets are hot off the machines, SI-Defense asked if we would want to build our own rifle using these receivers…and of course we’re not gonna turn that down. :) So this is the start to our multipart article showing the rifle we built, what parts we used and then we’ll do additional articles once we’ve actually had some time to shoot it for a while.

The first thing that arrived were the SI-Defense .308 Ambi billet receivers. The mirrored ambi controls on the receivers are pretty mind blowing. When you push on the Bolt Catch, Bolt Release or Mag Release on one side the same button on the other side moves as well. It really is pretty amazing that the ambi controls are mirrored and not just an added lever that is completely different than the control on the right side. The dust cover is pretty cool too in that it is easy to remove/install even with the handguard installed because it snaps into place.

SI-Defense 308 Ambi Rifle 1

A few months ago Rainier Arms introduced their new .308 UltraMatch BCG. Once I knew this build was going down I promptly went on the Rainier Arms website and purchased one. The finish on this thing is a really nice deep Black Nitride that is super smooth. The angled cuts toward the front and fluting at the rear of the carrier look pretty sweet.

SI-Defense 308 Ambi Rifle 1

If you’re gonna build a gun you definitely need a barrel, right?! Right. I’ve posted about AERO Precision barrels many many times before whenever they have a new model to introduce or a special deal etc. but have never personally used one myself. So for this build I contacted my buddy Chad over at AERO Precision to see if I could get my hands on one of their 16″ Mid Length .308 barrels. They are made of 416 Stainless Steel and I’m really excited to see how well they perform. You might be thinking “A 16 inch .308 build? Most guys do 18 inches or more.” and you’re right but I just built an 18″ like everyone else and wanted do something a bit different. Because I know big bore rifles can be a bit ornery I installed a SLR Rifleworks Sentry Adjustable Low Profile Gas Block along with the Rainier Arms Nitride Mid Length gas tube.

SI-Defense 308 Ambi Rifle 1

Along with the SLR Rifleworks Sentry Adjustable Gas Block, I also used the SLR Rifleworks SOLO 15″ KeyMod handguard, Hand Stop and their Synergy BCF muzzle device. It truly makes for one killer looking setup and can’t wait to see how well it performs.

SI-Defense 308 Ambi Rifle 10

SI-Defense 308 Ambi Rifle 1

Along with making some pretty amazing ambi receivers, SI-Defense also makes a mean looking ambi charging handle called the MACH10 which stands for Modular Ambi Charging Handle for AR10. This specific one has a neat feature where it latches on the inside of the receiver but they will also offer an outside latching MACH10 and a MACH15 charging handle as well.

SI-Defense 308 Ambi Rifle 1

As with all of my builds this one includes a Battle Arms Development Ambi Safety. I don’t own a single AR that does not have one and no I don’t get them for free. Its one of those products that I have honestly grown to love and buy them for every build.  

SI-Defense 308 Ambi Rifle 1

Along with upgrading the Safety I also upgraded the Trigger. I usually use either a Geissele or CMC Trigger and decided to try the Geissele S3G trigger in this build. The S3G is not really designed for a rifle with higher recoil as it has a very light trigger pull and could bump-fire easily so I used the heavier spring that comes with it. This is kind of a trial run and will be interesting to see how it performs in a .308.

SI-Defense 308 Ambi Rifle 1 SI-Defense 308 Ambi Rifle 1

Oooohhhh. Look at that sexy beast!! I also added a Trijicon VCOG, Magpul MBUS PRO sights, UBR stock and a MOE+ grip to finish off the build. I think it turned out to be an one of the best looking rifles I’ve built. 

SI-Defense 308 Ambi Rifle 1

These pics are hot off the press as I just finished this build over the weekend. This week will be its maiden voyage to see how well she runs and get the gas system all dialed in. Will update you with an additional article detailing its performance at the range and hopefully some 100 yard groups. If we don’t get accuracy data on the .308 AERO Precision barrel for that article it will be in an additional one for sure. Below is a list of links for the parts we used in this build.

AERO Precision
Battle Arms Development
Geissele
Magpul
Rainier Arms
SI-Defense
SLR Rifleworks
Trijicon

Angstadt Arms UDP-9 Glock Mag 9mm PDW and Receiver Sets

Posted on February 13th, 2015 by ar15news

Its hard to believe that we are already half way through the month of February but this year is just flying by. I’ve been trying to decide on a good time to introduce you guys to some new products from Angstadt Arms which are due out in April. With as fast as time seems to be flying, if I don’t do it now I might completely miss it. In a very short time, Angstadt Arms will be introducing their new UDP-9 9mm PDW (Personal Defense Weapon) and 9mm Receiver Sets.

angstadt arms 0940 receiver set

The UDP-9 is a 9mm Pistol AR that features the new receiver set which are truly beautiful looking. If you don’t like it in Pistol configuration you can easily submit a Form1 to the ATF to register it as an SBR and slap a stock on it. Probably the most important feature to me is the fact that they are fed by Glock magazines instead of Colt mags. Many people carry a Glock 9mm as their concealed carry option, including myself. Having a Primary and Secondary weapon that both use the same ammunition and feeding source could be a huge plus if its ever needed. With companies such as Magpul and ETS Group making 9mm Glock Mags,  will be more readily available and less expensive to purchase as well. You can read more about the Angstadt Arms UDP-9 9mm PDW below.

Angstadt Arms UDP-9 9mm PDW
The UDP-9 redefines the pistol caliber carbine. Designed specifically for urban environments and close quarter combat, the UDP-9 is a compact, personal defense weapon chambered in 9mm and fed with GLOCK® magazines.

angstadt-arms-udp-9 620

Angstadt Arms UDP-9 PDW SBRUDP-9 PDW SBR with an LWRC ultra compact stock and Ergo quad rail

Its compact size makes it ideal for home defense, security detail, law enforcement and anywhere space is at a premium. With models available for both prepared citizens, law enforcement officers and military personnel, the UDP-9 is easily configurable for any application. Available spring of 2015. Patent Pending.

UDP-9 Features

  • 7075-T6 billet aluminum lower and upper receiver with a matte black hard-coat anodized finish

  • Flared magwell for faster reloads, integrated, oversized trigger guard and a threaded bolt catch screw

  • Last round bolt hold open on an empty magazine

  • Slick side upper receiver with appropriately sized ejection port and no froward assist or dust cover

  • 9mm bolt assembly for use with a standard AR-15 hammer. Compatible with both GLOCK and Colt 9mm AR-15’s

  • 6” 9mm barrel in chrome moly with a 1/10 twist, black phosphate finish and A2 style flash suppressor

  • B5 Systems pistol grip

  • ODIN Works 5.5” free float keymod hand guard with continuous top picatinny rail and mounting positions at 3, 6, and 9 o’clock.

  • Weight: Sub 5lbs

  • Length: 21″

I’m really excited about Angstadt Arms’ new UDP-9 PDW and Receiver Sets. I’ve been wanting to either buy or build a 9mm AR for a while now, especially one that uses Glock 9mm Magazines like I carry every day. Not sure if I will buy a receiver set or full UDP-9 PDW but odds are I’ll end up doing something with these when they come out.

From what I can tell pricing will be $479 for an upper and lower billet receiver set, $1,249 for the UDP-9mm PDW Pistol and $1,349 for a UDP-9mm PDW SBR. Look for them to be released some time in April 2015. We will be sure to announce to you guys when they are available as well. 

www.AngstadtArms.com

NEW!! RailScales G-10, Aluminum and Titanium Handstops

Posted on January 30th, 2015 by ar15news

Not sure how I’ve totally missed this but the guys at RailScales are about to release their new S³ (Serrated Scales Stop) Handstop. Looks like the G10 version will be available for purchase starting this coming Friday (2/6/15) with the Aluminum and Titanium versions to follow. At first they will only be available in KeyMod with M-LOK versions to come soon. Apparently they will also fit the War Sport LVOA rail by removing the KeyMod nut and screwing it directly to the rail. Pics, Pricing and details for the RailScales S³ Handstops are listed below. These will be available for purchase on www.GetRailScales.com.

RailScales S3 Handstop 1

RailScales S3 Handstop 1

RailScales S3 Handstop 1

Finally!!! Our S³ handstops are ready for purchase. The G10 versions will be available first, on the website late next week. Aluminum and Ti will be available the following week. Pricing and weights! The S³ retail pricing will be $69 for G10 or Aluminum, take your pick. The Serialized Titanium price will be announced in the coming days, it will include some extra goodies, watch for the detailed post. 

Weights G10 – 0.6oz
Aluminum (6061) – 0.8oz
Titanium (6AL4V) – 1.3oz

After a long deliberation we decided to offer the Aluminum in the raw (sandblasted), leaving you to decide how to finish it. We have spent a lot time talking with friends, customers, etc as to what color, hard coat, paint, cerakote etc to offer, and about every response was something different. The Sand colored one was cerakoted and has held up nicely. In the future we might do a couple of anodized colors, Black and FDE. But we want to wait to get feedback from those that purchase to ultimately decide. We will be posting more details on each of the materials in the coming days as well as a comparison chart, showing how they stack up against each other.

Sneak Peek!! – KNS Precision Front Sight Posts for MBUS Pro

Posted on January 26th, 2015 by ar15news

Here’s a sneak peek at the new KNS Precision Front Sight Posts for the super popular Magpul MBUS Pro sights. The moment Magpul introduced the MBUS Pro sights people were looking for companies to make front sight post replacements. As far as I know, KNS Precision is the first to off an upgrade FSP for the MBUS Pro sights and it looks like they’ve got some great options. Apparently they will have both square and ball posts in .034, .052 and .072 diameters. There really isn’t a ton of additional information available yet other than what they posted on the KNS Precision Facebook Page and Instagram.

You can also keep an eye on their website www.KNSPrecisionInc.com.

KNS Precision MBUS Pro Sight Posts

SHOT Show 2015 – More New Products from Mega Arms

Posted on January 23rd, 2015 by ar15news

Mega Arms already introduced quite a few new products at SHOT Show this year but there were a few additional pieces that were just introduced or we didn’t really cover as close as we’d like to. For instance, Mega Arms just introduced a new pair of 5.56 SBR barrels (10.5″ and 14.5″) as well as a two new 300BLK barrels (10.5″ and 16″). 

Mega SBR and 300BLK Barrels 620

In case you missed it, here are our new SBR barrels, available in 10.5 and 14.5 in 556 NATO. 300 BLACKOUT is available for the first time in 10.5 and 16 barrel. MSRP on the 10.5s is $222.

They’ve also added an M-LOK version of the popular MKM MATEN upper. Mega Arms will be adding M-LOK across all platforms in addition to their current KeyMod offerings.

Mega Arms MLOK Options 620 

Mega Arms MATEN with MLOK 2 copy

Mega Arms MATEN with MLOK 2 copy

Mega Arms is excited to announce our new line of M-Lok AR-15 and MATEN/AR-10 hand guards and upper receivers. Firstly we have the new M-Lok versions of the MKM. Expect them to be in the same sizes, same platforms and at a similar price point as the KeyMod versions. Next up you will notice the new Wedge Lock free float Mil Spec AR-15 M-Lok hand guard. This all new product is made from 7075 and comes with a titanium barrel nut. Expect a variety of lengths, a MATEN/AR-10 version and a KeyMod variation in 2015. Pricing TBA. For those of you who have noticed a missing item in this group fear not, an M-Lok version of our venerable Megalithic Tactical System, or MTS, is also coming in 2015. An M-Lok version of the new Remington 700 chassis system is also planned. Expect to see the first of our new product at dealers by the end of the first quarter, 2015.

Lastly is the new Mega Arms Wedge Lock Handguard. Made from 7-series Aluminum with a Titanium barrel nut. Looks like it will mate up very nicely with a Mega Arms upper but will also work with any Mil-Spec upper as well. Gonna have to give one of these a try for sure.

Mega Arms Wedgelock Rail System 620 3Mega Arms Wedgelock Rail System 620 3Mega Arms Wedgelock Rail System 620 3

This is the new Mega Arms WEDGE LOCK handguard!
–  Cutting edge new design Ultra strong and lightweight. Simple one screw fastening system.
–  Made from 7075 extruded aluminum
–  Titanium barrel nut
–  Black Nitrided wedge system
–  Compatible with any Mil-Spec upper.
–  Includes handguard and comes with wedge system, titanium barrel nut, assembly tools, one M-LOK or KeyMod rail.

Definitely keep an eye on Mega Arms this year. Lots of awesome new products and super high quality as always. 

MegaArms.com
Mega Arms Facebook

DRD Tactical to Announce Their New KIVAARI Rifle at SHOT

Posted on January 19th, 2015 by ar15news

338 Lapua Magnum, Semi-Automatic, Quick Take Down

DRD KIVAARI-338 copy

January 19, 2015

Dallas, GA: DRD Tactical, specializes in design and manufacturing of patented Brief Case Rifles in 7.62 Nato, 5.56 Nato and 300AAC calibers, announces the release of KIVAARI™ Semi-Automatic Rifle in caliber 338 Lapua Magnum.

KIVAARI™ is designed to be a quick take down rifle using our patented quick change barrel system. Rifle features a 24” barrel with 1/10 twist, ambidextrous controls including the safety selector, bolt catch and magazine release, Geissele 2 stage trigger, Magpul PRS adjustable stock, Magpul M-LOK™ rail for accessory attachments, left side non-reciprocating charging handle, Silencerco QD muzzle brake for suppressor use, Atlas bipod, 2-10rd box magazines, overall length 47” assembled and Tactical Taylor Trekker back pack.

DRD KIVAARI-backpack copy

Rifle weighs only 14.6 lbs empty including the bipod because it operates on DI gas system. The ability to change barrels in the field and the most compact transportable long range semi-automatic rifle is what KIVAARI™ offers to hunters, target shooters, military and law enforcement customers, with 1-MOA accuracy. It will be offered in Nickel Boron and hard coat anodized black. As always all parts and raw material are Made in U.S.A.

It will be distributed by EuroOptic LTD and will be available summer 2015.

MSRP $6900

For more information, please visit www.drdtactical.com

*Photos courtesy of 47 Images Photography

Magpul Introduces the New PMAG D60 (60 Round Drum)

Posted on January 13th, 2015 by ar15news

It really was only a matter of time before Magpul decided to venture into the drum mag business. We know they have the expertise to make a high quality affordable magazine and have recently added 40 rounds PMAGs to their lineup. Today they introduced the new PMAG D60 which is a lightweight, compact polymer 60 r0und drum mag. It features a special loading lever to make loading easier, a clear “full magazine indication window” on the back, can be inserted on a closed bolt and holds the bolt open after the last round. It also can be easily disassembled for cleaning. Magpul says it will begin shipping Spring/Summer 2015 with an MSRP of $129.95 but they will not be making “cut-away” or “transparent” models. www.Magpul.com

The PMAG D-60. Sixty rounds. Reliable, durable, lightweight, shorter than a 30 rd mag, and full of features that make it extremely easy to use. MSRP $129.95. Please not that transparent back and cut-away versions were for testing purposes only, and the solid drum with round indicator window is the variant that will be offered for sale. Shipping Spring/Summer 2015, but you can get a sneak peak of the drum in action at ATAC range day before SHOT show.

NEW!! Bobro Lowrider Sights

Posted on January 7th, 2015 by ar15news

Bobro Engineering just introduced a great looking set of low profile “Lowrider Sights” on their Facebook page yesterday. This is about as low profile as it gets while still maintaining the normal functions of a set of backup sights such as windage and elevation adjustments, etc. not to mention these sights have secondary locks to ensure once you sight them in nothing moves after you zero the weapon. Check out the pics and details of this very cool set of sights below. Looks like first production run will be done after SHOT Show which is later this month.

Bobro Engineering Lowrider Sights 1

Bobro Engineering Lowrider Sights 1

Bobro Lowrider Sights (Patent Pending). We designed a set of sights that are truly low profile.

Design requirements—
1-Low as possible
2-Durable
3-Locks on opening
4-Fits under optics/mounts
5-Lightweight

We designed a side pivot mechanism for strength and the lowest possible profile that will remain durable. The side pivot has internal detents, and we also incorporated a drive pin lock system. You must depress a button to fold them back down.

These next two photos really show just how low profile they are. 

Bobro Engineering Lowrider Sights 1

Bobro Engineering Lowrider Sights 1

Be sure to visit www.BobroEngineering.com and follow Bobro Engineering on Facebook for additional details as they become available.

Sneak Peek!! SI-Defense Ambi 7.62 Charging Handle

Posted on December 26th, 2014 by ar15news

I’m really digging the new products that SI-Defense is coming out with lately. Their new completely ambi billet .308 receivers and rifle are the bees knees and just the other day they showed off a sneak peek of their new Ambi 7.62 Charging Handle. I realize everyone and their brother are making charging handles now so some of you might not be that excited but that is what pushes companies to be innovative.

SI-Defense’s new Ambi 7.62 charging handle will feature interchangeable levers which is something I’ve not seen offered before. The levers will also have the same grooves cut into them like they have on the integrated finger rest and on the forward assist housing. 

SI Defense Ambi Charging Handle and Rifle 2 copy

SI Defense Ambi Charging Handle and Rifle 1 copy

I’m really looking forward to seeing these available for sale soon. If you want to watch one AR Manufacturer in 2015, I would suggest keeping an eye on all things SI-Defense.

www.SI-Defense.com

NEW!! Seekins Precision 60/90 Ambi Safety Selector

Posted on December 22nd, 2014 by ar15news

Seekins Precision has released information on their new Ambi Safety Selector. If you had a sharp eye you probably caught a glimpse of it when they introduced their new SP10 .308 rifles. Well, in the next few weeks they will be releasing them for individual purchase. Each Seekins ambi safety will have a center core that has both 60 degree (short throw) and 90 degree (standard throw) configurations. As you can see in the first picture below, both ends of the core have a detent channel cut in them so you can change the setup anytime by simply removing the core and turning it around the other direction. 

Seekins Precision Ambi Safety Selector 2

“Say hello to our little friend… The new Ambidextrous Safety Selector. Featuring both a 90 and 60 degree throw lever in an interchangeable and fully drop in design. Compatible with any mil-spec lower receiver and machined with aggressive diamond texture. The Seekins Precision ambi safety selector will be available in the coming weeks with an MSRP of just $39.99″

Seekins Precision Ambi Safety Selector 2

Not only does the Seekins Precision Ambi Safety Selector look great but at and MSRP of just $39.99 I guarantee you it will be a hot seller. Be on the look out for them to be added to the www.SeekinsPrecision.com store and other retailers in the coming weeks.

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