OE-SPEC "Bloodmaker" 7.62X39- 11" Carbine Gas AR-15 Barrel- Nitride

Makes for a very handy and formidable package. I used a KAK dual ejector bolt in a Colt BCG to complete the build. I was worried about the gas port being too small having read previous reviews. So I took a carbine, H, H2 and H3 buffer to the range. I got lock back on empty using an H3 buffer and standard carbine spring with 5 different factory loads. No worries about being under gassed. I used Wolf, S&B, PPU, Tula and AAC Sabre black tips. The AAC was quite accurate, I fired a shot and aimed at the hole for 19 consecutive shots and it made 1 ragged hole at 25 yards. I moved back to 50 yards and had another great 20 shot group with S&B soft points 18 shots in a ragged hole .75" and 2 shots that opened up the group to an 1". I am very pleased with the way the gun cycled ejection was between 3 to 4 o'clock for all brands tested. The session was about 200 rounds fired in a short time and I got the barrel pretty hot and didn't give it much of a chance to cool when shooting for groups. I was using a Holosun red dot and 3X magnifier combo so I'm very happy with the results. KAK makes high quality parts at an economical price point and I love it. Keep up the good work.

Noticed the gas port issues. I’m running a sprinco red/extra power spring, H3 buffer and a seekins adj block. Shooting 123gr sst handloads at 2200fps feels like I’m shooting a 16” 556. Should only give 4 stars for the fact that this thing is so accurate I’m contemplating replacing the prism with an lpvo

First 100 rnds through this barrel was shooting consistent 2” groups at 100 yds at a seated bench using a sand bag for a rest with a 3x prism with cqb reticle and junk ammo. I’m convinced this barrel can cure cancer

Purchased this barrel for a build I did with my Dad and it is pretty accurate. Shot 1 inch groups at 36yds with this barrel length, and caliber, using steel case ammo. Would definitely recommend this barrel!!

I see a few comments about gas port problems. Nope. Used the KAK upper, parts, and bolt. Runs flawlessly on all my standard carbine lowers. Ejection is perfect. Eats crappy steel ammo like candy. I would highly recommend this for anyone that wants a very powerful home defense weapon for close quarters.

Good deal and pretty accurate. Did have to open up the gas port a little, from about .075” to .093” to get it to lock back

Well, price was right, came into stock, got it, a gas block and tube ordered in early April. It is accurate, way better than irons with any ak. Gas port was a little too small for my combo. With a standard buffer and “enhanced” spring it would not lock back on empty mag or cycle. Went down to 1.7 oz buffer, no go. The gas port was .075-3 area. Went to .093 area and put in an old carbine spring and is good with upto h3. Going to try a new carbine spring and the extra power spring again to see if I can get it perfict with a standard buffer.

I was excited when I received it; I like the 11" length and the awesome nitrided finish. Built the firearm, and paid very special attention to ensure the clamp-on YHM gas block was properly centered over the gas port. However, when I went to the range with Wolf 123 gr copper bullet/steel case ammo, the firearm would eject but not feed; not enough gas. Added a Sprinco Yellow reduced power buffer spring, and with that the firearm would cycle and feed, but only locked open on an empty mag about 50% of the time. The gas port appears to be ~0.086" (a 0.093" drill bit would not fit. By way of comparison, a 16" BCA barrel (also carbine gas), which has a 0.093" gas port cycles perfectly, and given that it's a 16" barrel has more bullet dwell time which send more gas to the BCG, so this gas port is definitely undersized given the barrel length and carbine gas system. I've sent the barrel to a gunsmith to drill the gas port open to 0.125" and will be installing a Superlative Arms clamp-on adjustable gas block to adjust down to the gas needed to cycle properly. This is costing me $75 for the drill-work, and $100 for the SupArms adj gas block, which therefore reduced the "value" component of this barrel.

As mentioned in the tag line, this barrel is excellent value, especially given the Melonite (nitrided) finish. Also quite accurate, albeit shooting with iron sights only. That said, even with perfect gas block alignment on the gas port, it wouldn’t lock open on empty ans ~50% of the time failed to feed a new round, so undergassed. I have a Sprinco yellow (reduced power) buffer spring on the way, and will update the review after that, as I think that will solve the issue. If not, I’ll have to have the gas port drilled out. Would be nice if the gas port size were noted on the specs on this website.