Advanced Armament Company

AAC M4-2000 Blank Firing Adapter (BFA) Train smarter and safer with the AAC M4-2000 Blank Firing Adapter (BFA)—a purpose-built solution for realistic blank fire training. Designed to replicate...

Special tools are not used every day but this tool is the best way to tighten an AAC Blackout. It also works with AAC Breakout 2.0 It accepts 3/8 ratchet or breaker bar.