This guide details the installation of the CF-W Bolt for the M11/9 submachine gun, a modification designed to significantly reduce the rate of fire. The increased mass of the tungsten alloy bolt, compared to the OEM version, allows for slower cycling and improved controllability during full-auto fire. The guide also touches upon the 'paperclip mod' for adjusting recoil springs. Instruction is provided by subject matter experts with high authority in NFA firearms.
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