The Gen:6 CQB brace is perfect for PDW pistols providing the adjustments you need for more comfortable shooting and making your AR pistol more compact for easy transport. It offers the same durability and features and is built on the same robust housing as our CQB stocks. - SPECS - Weight: 18.59 oz. - Material: 7075 aluminum housing - Length added: - 5.375 closed - 6.875 1st position - 8.375 2nd position - 9.24 fully extended - FEATURES - 1. Utilizes the SB Tactical Arm Brace. - 2. Anti-rotational ambidextrous QD sling mounts. - 3. One-hand operation is possible with the Maxim collapse lever. The take-down lever is knurled for positive gripping when hands are wet or wearing gloves. - 4. Interchangeable with our other Buttstock Assemblies - 5. Knurled collapse lever - BUFFER & SPRING - Standard H1 H2 H3 Pistol - This Brace is compatible with all Maxim Defense CQB series buffer systems. - JP SILENT CAPTURED SPRING - Standard Heavy 9mm - JP Silent Capture Spring System XS (Proprietary & Exclusive to Maxim CQB Series) ; - Standard Heavy and Pistol (9mm ONLY).