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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 and get on their email notification list so you can snag one of these as soon as they become available.

Labor Day Sale – KAK Industry

Posted on September 4th, 2015 by ar15news

KAK Industry has started their Labor Day Sale. Use the code “LABOR” at checkout of 10% off site wide. This includes BCGs, rails, uppers, muzzle devices, parts and accessories and barrels. Even the already discounted “contract overrun” barrels qualify for the 10% discount. GeT sOmE!!

KAK Industry Labor Day Sale 1KAK Industry Labor Day Sale 2

Labor day sale starts …….NOW
use code “LABOR”.. good for 10 percent off sitewide.
one use per customer
not retroactive, please don’t ask
good till monday at midnight

New!! Kaiser Shooting Products TITANIUM BCG

Posted on August 31st, 2015 by ar15news

Kaiser Shooting Products has just introduced their new TI-7 Titanium Bolt Carrier Group. Not only does this look like a really nice BCG but it comes at a great price point. For those who have not looked at Titanium BCGs, most are priced at $325+ and go up into the $500-600 with ease. The KSP TI-7 BCG is being offered at an intro price of just $275 Shipped making it much more affordable and in line with other high end AR-15 BCGs. The Bolt itself is made of Carpenter 158 steel. The carrier itself is Titanium and has a machined Gas Key (not MIM) for increased strength. The entire BCG is DLC coated as well. If you are looking for a lightweight BCG, this might be a great way to go. Check them out at

Kaiser Shooting Products Titanium AR15 BCG

Introducing Kaiser Shooting Products Titanium Bolt Carrier Group

Introductory Price:  $275 with Free Shipping!

–  MPI C-158 Bolt
–  Titanium body
–  Machined Gas Key
–  DLC Coating
–  98 Rockwell Hardness.
–  Chemically impervious.
–  7.5oz weight vs 12oz weight of MilSpec.
–  Zero Failure for short stroking with extensive tests.

SI-Defense / FALKOR Defense .308 NiB BCGs On Sale

Posted on August 5th, 2015 by ar15news

SI-Defense, now known as FALKOR Defense makes some absolutely top tier quality AR-15 and AR-10 components and rifles. They rarely ever go on sale but for a limited time they are offering a discount on their very nice .308 NIB BCGs. Just use the code “308BCGNIB” at checkout and receiver $35 off that part. Purchase at Details and pics of this BCG are below.

SIDefense FalkorDefense NIB 308 BCG 2

SIDefense FalkorDefense NIB 308 BCG 2

SI-D has made a BCG that is drop in ready. The SI-D BCG was designed and tested for crucial weight to performance ratios. Reducing too much weight may cause integrity issues, while adding weight decreases overall rifle performance. SI-D has also tightened its tolerances in key areas for ultimate reliability and longevity purposes. Finally, a great deal of engineering methodology has gone into SI-D’s manufacturing process that allows consistency on a part that must perform every time. Key dimensions are continuously inspected, including Magnetic Inspection on the carrier and bolt.

–  SI-D Bolt 9310 Steel Alloy MPI
–  SI-D Carrier 8620 Alloy Heat Treated Steel
–  Nickle Boron Coated for Ultimate Performance
–  Drop-In Ready

LANTAC USA .308 E-BCG’s Coming Soon

Posted on July 6th, 2015 by ar15news

LANTAC USA has posted a photo on their Facebook page eluding to the fact that they will soon offer their extremely popular E-BCG in a .308 version very soon. It seriously would be nearly impossible to find a nicer BCG than the LANTAC E-BCG. Having an AR-10 model would be a very welcomed addition to the growing lineup from LANTAC. Keep an eye on the LANTAC USA Instagram and Facebook page for more updates. I will be sure to keep you guys in the know as well.  

If you’d like more information regarding LANTAC’s already available AR-15 E-BCG you can get that HERE.

LANTAC .308 E-BCGYou can just barley see the rear end of the LANTAC .308 E-BCG poking out of the upper in this photo.

Rainier Arms 4th of July / Independence Day Sale

Posted on July 2nd, 2015 by ar15news

Rainier Arms has a great 4th of July / Independence Day Sale going on. Pretty much something for every build on sale including Barrels, Muzzle Devices, Mags, Uppers, Lowers, BCG, Complete Uppers, etc. If you’ve got a build going on, you should definitely check out the Rainier Arms Independence Day Sale!

RainierArms Independence Day Sale 1RainierArms Independence Day Sale 1RainierArms Independence Day Sale 1RainierArms Independence Day Sale 1RainierArms Independence Day Sale 1

More items on sale at

KAK Industry Father’s Day Sale

Posted on June 20th, 2015 by ar15news

Just ran across KAK Industry’s Father’s Day Sale on their Facebook page and wanted to share with you guys. I run a lot of KAK Industry parts in my guns (BCG’s, Gas Blocks, Barrels, AR Pistol Buffer Tubes, etc) and love them. Here’s a rare chance to save a bit more when shopping with them. Use the code “DAD” at checkout and get 10% off your order of anything in-stock. You can only use it once though so make good use of it while you can.

KAK Industry Father's Day SaleShown in this picture is a KAK barrel, KAK Shockwave AR Pistol Buffer Tube and Blade

OK EVERYONE.. fathers day sale starts right now.. use code “DAD” 10 percent off anything in stock only one use per customer so make it count not retro active orders cannot be changed once placed so make sure its right before you click go.. expires sunday 6-21-15 at midnight thanks to all the great dads out there..enjoy… kurt

ADK Arms Father’s Day Smokin’ BCG Sale

Posted on June 19th, 2015 by ar15news

Looking for a new BCG?  This ADK Arms Father’s Day Sale should help with that. Pick from a variety of Nitride QPQ BCGs in 5.56 and .308, including a sweet side charging BCG. They also have .308 and 5.56 BCG repair kits on sale too. Sale items listed in the image below. Sale ends tomorrow night at midnight. 

ADK Arms Fathers Day Sale

ADK Arms is happy to announce our Father’s Day Smokin BCG Sale. Sale will continue all week and will end at 11:59pm on 6/20/2015. Free shipping on all Father’s Day Sale items!!!!!!!!

Rebel Arms Enhanced Nitride M16 Bolt Carrier Group Promo

Posted on May 18th, 2015 by ar15news

One of our website sponsors, Rebel Arms, has a promotion going on right now for their new Enhanced Nitride M16 BCG. This style BCG is very popular right now and is being produced for a number of different companies and for good reason…they are great BCG’s. A Nitride finish on a BCG is perfect because it is very slick but also has great anti-corrosion properties that protect it from even the most corrosive AR ammo. As you can see the carrier itself also features enhanced cuts as well.

Rebel Arms Enhanced Nitride BCG 1Rebel Arms Enhanced Nitride BCG 1

Use the code “REBEL10” at checkout to save 10% off. This code only applies to the BCG and can be applied to as many BCG’s as you would like. This promo ends on 6/1/15. Head on over to for more information and to purchase one today.

**Note: As always, AR15NEWS does not charge or accept payment or commission for writing articles of any kind. If you find value in what we write about and can get in on a good deal or cool new product, that makes it worth while to us.

AIM v2 BLACK NITRIDE .223/5.56/300BLK CARPENTER 158 Bolt

Posted on May 4th, 2015 by ar15news

AIM Surplus just introduced their new Black Nitride AR15 Bolt made from Carpenter 158 steel. The bolts are also Shot Peened and MPI (Magnetic Particle Inspected) and feature Billet Machined Extractors with Black Insert and O-Ring upgrade. Black Nitride is quickly becoming the go-to finish for AR parts. The fact that it is a Surface Treatment (Molten Salt Bath) and not a coating gives it better durability and boasts some of the best lubricity and corrosion protection of any finish out there. If you’re building a BCG or need a great backup/replacement Bolt, this is a great option for just $49.95 with FREE SHIPPING at

Aim Surplus Black Nitride V2 Bolt



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