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October 5th, 2022, 12:04 PM #1Super Member
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- Oct 2008
- Location
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Murrysville,
Pennsylvania
(Westmoreland County) - Posts
- 808
- Rep Power
- 845903
Piston AR Upper for a Pistol Length 300 BLK
Who makes a decent piston upper for a 300 BLK with a 10" to 12" barrel. I am interested in a piston because I will be shooting suppressed 100% of the time. I don't mind shooting suppressed w/ a 20" or 22" DI AR, but at pistol length concerned about all the blowback & how filthy the action will get.
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October 5th, 2022, 12:28 PM #2Super Member
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- Feb 2013
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Reading,
Pennsylvania
(Berks County) - Posts
- 867
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Re: Piston AR Upper for a Pistol Length 300 BLK
ive had no issues with my adams arms piston ars.
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October 5th, 2022, 12:50 PM #3
Re: Piston AR Upper for a Pistol Length 300 BLK
I cant' say that I've ever heard anything bad about Adams Arms.
I only have one piston AR at that is my 16" Ruger. It still gets incredibly dirty when suppressed. When unsupressed the BCG stays so clean that it's hard to tell it was even fired.
Because they are so expensive I haven't desired to own anymore or even shop for them.
One of my favorite Youtubers- Sage Dynamics, loves PWS(Primary Weapon Systems) *ETA: this is 6 years old. Probably newer mods to look at
"It seems that the Constitution is more or less guidelines than actual rules"
My feedback: http://forum.pafoa.org/showthread.php?t=305685
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October 5th, 2022, 01:09 PM #4Super Member
- Join Date
- Oct 2008
- Location
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Murrysville,
Pennsylvania
(Westmoreland County) - Posts
- 808
- Rep Power
- 845903
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October 5th, 2022, 01:10 PM #5
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October 5th, 2022, 02:04 PM #6
Re: Piston AR Upper for a Pistol Length 300 BLK
PWS makes the BRN-180 for Brownell's. Mrs Ronin has a 5.56 upper and it's excellent. I've been considering one in .300 BLK for a while. However, I'm left handed and I get pelted in the face with brass from the BRN every now and again. I'm waiting to see if BCA offers a pistol length version of their piston upper in .300 BLK. So far, it's just been a full length upper in 5.56. Also BSA's QC is hit or miss, so will have to factor that into my final decision.
Brownell's currently has the 10" version of the BRN-180 in .300 BLK on sale for $899. If you use the code MRGUNSNGEAR, it drops the price to $810.
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October 5th, 2022, 02:07 PM #7
Re: Piston AR Upper for a Pistol Length 300 BLK
My unscientific observation will say it's about the same as DI. I don't mean to suggest that it affects anything negatively, I was just surprised at how clean my piston system ran unsupressed and then shocked at how dirty my Nickle boron BCG looked after throwing a can on it.
"It seems that the Constitution is more or less guidelines than actual rules"
My feedback: http://forum.pafoa.org/showthread.php?t=305685
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October 5th, 2022, 02:12 PM #8
Re: Piston AR Upper for a Pistol Length 300 BLK
"It seems that the Constitution is more or less guidelines than actual rules"
My feedback: http://forum.pafoa.org/showthread.php?t=305685
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