Phase 5 Weapon Systems Inc Arm Brace Stop Multi Fit Black. The Absm Allows A Stabilizing Brace To Be Installed At A Comfortable Length While Minimizing Rotation And Preventing Forward Movement Of The Brace. The Absm Also Includes A Built In Qd Connect Feature That Allows The Pistol To Be Used In Conjunction With A Quick Detach Weapon Sling System. Compatible With SB Tactical Braces: SBM4 SOB SBX-K SBV Specifications for Phase 5 Weapon Systems Inc Multi Fit Arm Brace Stops: Manufacturer: Phase 5 Weapon Systems Inc Color: Black Condition: New Fabric/Material: 6061-T6 Aluminum Weight: 1 oz Length: 2.25 in Features of Phase 5 Weapon Systems Inc Multi Fit Arm Brace Stops Fits tube diameters from 1.20in 1.25in The ABS also includes a Built in QD feature that allows the pistol to be used in conjunction with a quick detach weapon sling system. Package Contents: Phase 5 Weapon Systems Inc Multi Fit Arm Brace Stops Allen wrench and hardware Phase 5 Weapon Systems Inc ABSM-BLK: Arm Brace Stop Multi Fit Black