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Bear creek arsonal uppers. Good?

1065 Views 51 Replies 6 Participants Last post by  IowaShooter
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Coal: I bought a BCA side charging upper for one of my AR’s a couple of years ago and it performs well (in 5.56)… so I’m trying their 7.62x39 upper too

here’s the order I made recently from BCA… I’ll let you know soon how the one above works!

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Coal, I have BCA uppers in a few varieties in 5.56, 223 Wylde, 350 Legend, and 7.62 X 39. ALL are very accurate.

Now, in all AR's of 7.62 x 39 cal there is a possibility of light Primer strikes. Eventually you will see this. The fix is to buy an "Improved" firing pin for this caliber. Or, a heavier hammer spring if you need to.

A lot of foreign made ammo has hard primers. It varies a lot. Russian ammo has been the main problems I ran into.
So I bought an improved firing pin. Problems seemingly gone.

Also, this Belom ammo coming in is good stuff. Brass cases and copper plated fmj bullets. Belom makes Police and Military ammo mostly. A part of PPU in Serbia. Good pricing.
The BCA uppers now come with the improved firing pin (at least it said they do when I ordered the BCA upper recently)

From the specs on the upper—-
”Featuring a 7.62x39 enhanced firing pin for increased reliability for steel cased ammo and upgraded bolt.”

will I be able to tell when it arrives and I take the BCG apart and look at the firing pin? Is it heavier? Is it ‘pointier’?
I doubt it. Difference is only a bit in taper and a couple 1000' different. Main thing causing this from time to time is the ammo you are shooting. Tula still had some problems with the improved pin I bought. Finally shot it up. Red Army from
Century Arms is another one with hard primers at times.

I just shoot the light primers again and they usually fire well. I have a lot of the steel case to shoot up. But most I will shoot in my AK or a few SKS. I am going with the Belom X39 now because I gave up reloading. Getting old as you know.
Thank you for the insights and good info. I’m looking forward to giving this upper a go!

I too have a lot of steel case to shoot.. but also have some PPU brass case to try as well.



and… we are only as old as we feel… oh, wait… I feel really old too!
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It's a ghost gun now lol. No ffl for uppers. :p
I’m printing out my lower now on my 3-D printer now… :unsure:
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I’m printing out my lower now on my 3-D printer now… :unsure:
And now for the oil filter… :ROFLMAO:
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My upper is on the way. Should be delivered Weds. No word from PSA on my lower yet. I'll put the upper on my SW lower and get the scope in for now. Also my 20 round mags from Gun mag warehouse are due in today.
What the heck… mine still shows “processing” and I ordered before you! :)
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Ok- just got the email... Mine has now shipped too.

First one with a range report wins!
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I’ll be testing it with a couple of types of commie steel-cased ammo and some PPU brass-cased

will be specific and detailed in my range report :)
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It arrived today… awaiting optic

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Sparsely packed but it looks like it got the job done.
It had more packing… I removed for the picture
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I have 122gr Tulammo FMJ, 122gr Red Army FMJ, 123gr Wolf HP and 123 gr PPU FMJ brass cased to try in this heavy barrel upper with 1:10 twist rate.

there is a 3.5 pull drop-in tripper from Rise Armament

i need to get an optic on this quickly so I can beat @Coalcracker to the range!

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Had to call BCA… seems they forgot to ship my scope! Had to leave a message… no answer when I called customer service At 2:00 p.m. Will try again tomorrow.

I don’t really want to use MBUS sights (could take off another AR) and don’t really want to take a scope off any other rifle for now.

Haven’t disassembled or cleaned the upper yet


the 10 rd mag I bought does have a curve - it‘s a stainless steel from D&H … if it works well I’ll buy a couple of more

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Well… a good outcome… they had sent optic in separate package… should arrive today
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Hope not...

In case I ever need to adapt during SHTF

These two arrived today...
1/2-28 to 3/4-16

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A couple of others with 5/8-24 to 3/4-16, 13/16-26 and 3/4NPT arriving soon

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Well… a good outcome… they had sent optic in separate package… should arrive today
Found some risers at the LGS last night… ready to affix scope today and then take rifle to the range!
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I’ll take mine back out and try at 100 yds. with a couple of types of ammo
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