Bear Creek Aresnal 7.62x39, learning to like it

[Runs With Fire]

I bought a BCA side-charging upper over a year ago. Didn't get to using it much until recently. I'm impressed with how well it shoots. I'm a 1-2 MOA shooter with a good rifle. This $200 AR upper shoots 1-2 MOA. I fired 40 groups last Saturday. M widest was 2.2 inches at 100 yards. The smallest was .76 inches at 100 yards. I was just firing Tulammo, sitting on a bench with a few 2x4s for a rest. It's not bad at all considering the ammo used. I only got in 200 shots, but it was enough to get the barrel hot, and let it freeze (25-degree air temp). The groups opened up as the barrel got heated, so that's worth noting. I only ever bought it to write an article about it, but now I may use it for deer hunting if I can find some soft points that shoot well.

I'm not overly stringent on sub-MOA in a rifle. I just want something that will reliably kill deer at 200 yards. I think it cost me $211 plus $129 for the Vortex Crossfire long eye relief scope. It seems to work fairly well. I really want to get my hands on some more premium ammunition to see if that makes much of a difference in such a cheap upper.

[Forte S+W]

I was considering picking up a 7.62x39 BCA Complete Upper during their Black Friday Sale, but ultimately decided to put the money towards gifts for my family since we've all had a rough year. I'll probably pick one up someday in the future though.

[Runs With Fire]

I've bought 6 of these now in various calibers so I could test them out for writing about them on my website. I like them all. I will say, my 7.62x39 came with the original soviet spec firing pin. I swapped it with the Improved Firing Pin so it would reliably shoot SAMMI spec ammo. As well as the Russian stuff. My friend did the same thing.

[Fla_dogman]

What are the 6 calibers and which one shoots the best for you?

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[taylorce1]

I've been interested in a few uppers from BCA.

[berettaprofessor]

Please tell me about the difference between the original Russian spec firing pin and the improved pin. Aren't these just a regular AR firing pin, regardless? I have a BCA 7.62X39 and never noticed it was different when cleaning.

[Runs With Fire]

I've only bought 4 different calibers, some were repeats. They're all about the same accuracy-wise. I bought 350 Legend, 450 Bushmaster, 6.5 Grendel, and 7.62x39

[Runs With Fire]

The Soviet spec firing pin is a littler bit longer than the SAMMI spec. The technical specs for the Soviet Berdan primers are really the same, but they have a wider tolerance and some lots of soviet ammo just don't work with SAMMI spec pin. According to some engineers, it's possible for the quasi-Soviet spec "improved firing pin" to cause accidental firing or pierced primers in SAMMI ammo. It's likely dumb layer stuff. They've gone back and forth a bit on which they use. When I bought mine, it had a disclaimer about it. The Improved Firing pin is the one that should be used on 7.62x39 and 5.45x39 ARs in my opinion. It's an issue with these Russian-designed calibers, not all Russian made ammo

[2damnold4this]

I have purchased three uppers from BCA, one in 6.5 Grendel and two in 7.62x39. They are a great way to try out a new cartridge with minimal expense. I have had to replace extractors on the 6.5 and on one of the 7.62x39 rifles but a quick call to BCA had warranty replacement parts on the way. I do keep a spare extractor for both calibers as the type 2 Grendel extractor is a little different than the 7.62x39 extractor.

[smee78]

I got one of their 450 Bushmaster uppers but haven't been able to shoot it yet. It appears to be a solid upper and I hope it performs as well as your uppers did.