7.62X39 AR15 BCG

7.62x39 BCG was shipped fast. Only have about 100rd through it so far....but does what its supposed to do! Good quality. Would recommend to others for sure.

more than happy with my KAK BCG. This thing is incredible. Best functioning BCG I've had. It can handle the abuse of hundreds of rounds of cheap steel case tulammo and other poor quality ammunition without a hiccup. Don't listen to people that say you can't build an AR in 7.62x39, just get one of these BCG's and silence the critics.

This thing works! No issues with several types of ammo (both brass and steel case). Several hundred rounds and it's still breaking in. Extractor is solid! Only complaint is that the bolt is not sold separately from the carrier. Would like an extra bolt and options of other carriers, but happy with this one!

This BCG was a perfect match with the KAK 16" 7.62x39 Stainless Steel Barrel, absolutely no problems what so ever. But a KAK logo would make it look better.

I like the BCG. So far works well with Steel and Brass ammo. One thing I'd like to see though is the KAK logo on the BCG as their other BCGs have.

Put this together with the 8" KAK barrel and a BCM upper as a fun experiment/range toy with no serious expectations. However after several hundred rounds it has performed flawlessly with no malfunctions using steel cased Tula ammo. Thank you KAK this is now one of my favorite toys.

Just have to say thanks to Kurt and KAK as he and I talked quite a bit about this build going into it. This bolt is truly a beast and so far, out of the 8.0 inch pistol build (utilizing a KAK barrel of course) I am impressed and satisfied with the performance. No light strikes, head spacing is on the money, and only one failure to extract in the first 100 rounds of Tula steel cased ammo that I am using to break the gun in. I have a feeling that this pistol build will prob become my favorite and most enjoyable to shoot. If you are considering building a X39 gun, don't waste your time looking elsewhere......! Don't even waste your time or money looking elsewhere. Buy KAK and build the best!

KAK did a fabulous job getting the ordered items to me fast. Thank you. This bolt carrier by all appearances is very standard. The bolt has a few rough edges but after a couple hundred rounds it has worked flawlessly. The firing pin dimples the primers very well and I have had no issues with light primer strikes. The bolt locks up very nicely every time

First off a huge thanks to KAK Ind. for shipping out (USPS Priority) my KAK AUTO 7.62x39 BCG so fast... well within my expectations, 5 Stars! The 7.62x39 BCG is about what you'd expect from a non-stamped BCG... what I mean by that is there is no markings on the BC or bolt as to testing properties. Bolt head space was spot on, and you can see and feel a much more robust extractor compared to a 5.56 bolt. The firing pin is just as you see in the KAK catalog photos and extends further than a standard firing pin leaving me to believe it will do the job with steel cased ammo (primers) as intended. Unless I find out otherwise I will give this BCG a scheduled Frog Lube treatment since it is simply a military phosphate finish. KAK also included an additional extractor o-ring... an added bonus. Thanks! Over all I have great expectations for this 7.62x39 BCG in my 10.5" pistol build and will be very eager to see the results. Thanks again to KAK Industry for a low cost quality product!