Hey guys,
REeently build ar pistol, went to shoot a while back about 200 rounds, everything went good. Went today and about 200 rounds as well were shot, but a bit faster, started getting some FTF every 5 rounds, then every round...
Upper: Orion Guns 7.5 with no name bcg
Anderson lower
Shockwave blade with their own buffer, spring, tube (blade kit that comes everything included)
Only brass not steel
What could it be? thanks
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