A5 Buffer Setup with a 15.5" rifle gassed carbine?
For fun, I picked up the Brownells 15.5" rifle gassed barrel and snapped together a pseudo Colt 605. Pinned and welded a Griffin Arms linear comp for California compliance. Also hoping the linear comp can add a little dwell time and pressure to the system. Running a DD BCG and a standard rifle extension. I have not verified, but the port is supposedly 0.1015.
So far this summer, in upper 80oF temps, I've run PMC bronze and Federal XM193. The PMC has not stalled the gun yet, but its border line and kick cases back at 4~4:30. Tosses them about 2'. The two FTF's I've had were 10/20 Pmag related issues.
I was debating going to an A5 set up. Done a fair bit of digging and I've found the buffer weights, but am wondering which buffer most directly mimics a standard rifle weight, 5.1oz, as that appears to work now. With the shorter tube, I know it's not apples to apples.
I figured I could start there and then work a little lighter to see if that can speed things up a little and give me a little kick towards maintaining reliability. It's a 1-12 twist barrel and will spend it's life shooting PMC Bronze and various XM193 types I pick up (Federal, PMC Xtac, etc).
I've read some of the built 605's with cut down 20" barrels are running 0.110 ports. I'd like to see if I can keep this carbine happy without opening it up any further.
Last edited by mrbieler; 08-19-19 at 10:12.
- Jeff
“Every record has been destroyed or falsified, every book rewritten, every picture has been repainted, every statue and street building has been renamed, every date has been altered. And the process is continuing day by day and minute by minute. History has stopped. Nothing exists except an endless present in which the Party is always right.” ― George Orwell, 1984
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