Forum: 300 Whisper Rifles and Pistols
12-21-2007, 06:24 PM
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Replies: 2
Views: 1,586
gas ports
well, I got my upper from model 1. I am going to shoot this barrel for awhile then build a sbr with a match barrel.
in the mean time Im going to shoot this with some 240 smk subsonic loads (yes its...
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