
Originally Posted by
patrick0525
I am already using a Spikes Buffer ST-T2 (4.1oz) and Sprinco blue buffer spring.
Using the Rainer Arms 16" mid-gas system. brass ejection is 4:00 oclock and the PMAG lock back.
Next weekend, I am going to swap the BCG(young manufacturing to the WMD Nickel-Boron) and see if that has any effect. It shouldn't . Both barrels are using the same Geissele super gas block.
I hate to buy and try the H2/H3 buffer. Is it really worth it?
By the way, the ejected brass looks perfect. No unusual marks on the brass.
Even though it sounds overgased, I'm just not convinced it is yet. Of course being "overgased" is really just a word and relative to other things with a gun . . .
I think you may have a mag follower/spring issue. Maybe the follower is binding slightly on the way up for the last round and/or the spring is weak or something like that. Even if your PMAG does not have any defects, using any gen 3 PMAG could be an issue with your gun as montrala discussed above. I don't use PMAGs, so I can't be more helpful/specific on this issue.
I may have missed it, but have you used more than one PMAG? It sounds like you haven't. I would try another (same generation) just in case. That should be cheap and easy to do. You might just have a bad PMAG.
As you and Iraqgunz mentioned, the bolt carrier swap should have no effect.
By the way, I never pay too much attention to ejection patterns. But that's just me.
Joe Mamma
"Reliability above all else"
NRA Certified Pistol and Rifle Instructor, Life Member
Glock Certified Armorer
Beretta & Sig Sauer Certified Pistol Armorer
Colt Certified 1911 & AR-15/M16/M4 Law Enforcement Armorer
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