I just put together an 11.5 pistol and took it to the range today. It’s not my first build but it is my first pistol
Ballistic advantage carbine gas 11.5 barrel with fsp
BCM BCG
H2 buffer
PSA LPK (I know)
SBA3 and normal carbine receiver extension
I was getting consistent failures to eject that were causing double feeds and even a bolt over base when I used Federal M193 no matter the mag (Pmag M2/M3 and Okay USGI)
Russian steel case worked better but still multiple malfunctions of the same type per magazine.
I performed a lockback check and it locked back every time. One interesting thing I noticed was that when I fired the gun without a magazine inserted, the brass fell out of the magazine well. I only did that one time though.
The gun was lubed but not dripping
Brass ejected at 3:30-4:00 with steel and 1:00 with M193
My guess is that it needs a heavier buffer and possibly an extra power spring too. I emailed Ballistic Advantage and they told me to start with a carbine buffer and figure it out from there but that seems like a waste of time.
What do you think?
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