Armscor 300 Blackout, 147 gr
By Dave D.
on May 23, 2023
I shoot my 300 BO suppressed. I had zero problems or malfunctions. I usually shoot subsonic ammo, & had my adjustable gas port adjusted accordingly. I turned it up 2 notches for this ammo & both, all, functioned perfect. I'd recommend, no problem.
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