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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.

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