The RBS9 SQD is an ingenious fusion of the reduced backpressure system (RBS) technology for which B&T is known for, and a totally new one-hand, 3-lug mounting system. The new RBS SQD suppressor will fit all 9mm weapons featuring a 3-Lug barrel interface. The spring-loaded retaining collar will snap down onto the 3-Lug attachment, automatically locking the suppressor into place. Two endcaps are included with the SQD-M, one vented and the other non-vented.