AAC brought along a FN Mk46 (lightweight version of the M249) chambered in .300 Blackout to their Silencer Shoot and to NDIA. It cycles fine with subsonic loads.
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AAC brought along a FN Mk46 (lightweight version of the M249) chambered in .300 Blackout to their Silencer Shoot and to NDIA. It cycles fine with subsonic loads.