Bolt not locking back

[Clint]

I believe they were selling both the DPMS style (standard tube/short buffer) and the AR10 style (long tube/standard buffer) carbine buffer systems simultaneously AND occasionally mixing up parts.

Either style works, parts are NOT cross compatible.

Proper stroke should be verified by pulling and holding the charging handle and inspecting.

[ra2bach]

Hmm, that's not the case with my PSA AR308. Buffer in my factory PSA rifle was the same as all my 5.56 carbine buffers

arrrrgh, so it be. I was going off reports/rumors and didn't personally weight it. in fact, it's simply a H carbine buffer (3.8oz). I was expecting at least H2 or something...

anyway, I ordered a .308 rifle buffer (5.4oz) and spring. I'll check function with that and my handloads...

[ra2bach]

removed...

[ra2bach]

I believe they were selling both the DPMS style (standard tube/short buffer) and the AR10 style (long tube/standard buffer) carbine buffer systems simultaneously AND occasionally mixing up parts.

Either style works, parts are NOT cross compatible.

Proper stroke should be verified by pulling and holding the charging handle and inspecting.

yeah, PSA is providing me with a learning opportunity here.

I won't make the mistake of thinking this is a hardened weapon but if I can get it to make meat in hunting season and be reliable at the range, for less than $600 it will have earned its keep...

[ra2bach]

a quick update, the PS10 works very well with A2 rifle stock, shorter AR10 rifle buffer, and spring.

the upper is 18" midlength and these are reported to be overgassed. shooting 4 different weights and brands of commercial match and hunting ammo, ejection is all acceptable with cases landing between 6-10 feet and about 2 oclock with a couple very light marks on shell deflector. recoil was very acceptable.

operation deemed a success. I just need to shoot more to get an idea of reliability but no failures after 100 rounds using Magpul 20rd mags. if anything changes I'll update here...