Dead Foot Arms Subcompact Weapon 4in Stock for 9mm AR Platform Rifles Gen 2 Black Anodized. Collapsed length of the stock is 3.9?. While compact it is still very versatile allowing for button free stock deployment and 6 length of pull settings. At full extension length reaches 12.6" from trigger keeping it comfortable for shooters of all sizes. The SCW 4 Stock features an ergonomic design that uses dual rails that are offset to not interfere with weapon controls or function. System includes complete stock assembly receiver extension adjustment rail and recoil springs and plunger. System weight is 18 oz. Compatible with most 9mm AR-15 pistols and rifles: BCG needs to be the full-length style have a removable internal weight and an internal diamater of at least 0.62 inches. For CMMG Radial Delay you will need to order the Rifle Caliber version. NOTE- This product does not require a shortened 9MM BCG thus no bolt carrier group is sold with this kit. INTERNAL BCG WEIGHT MUST BE REMOVED PRIOR TO INSTALLATION. PLEASE READ INSTRUCTION BOOKLET/INSERT THAT COMES WITH THE KIT. NOTE: When "FoldAR Upper" in the drop down is selected the SCW2.5 kit will come with a shortened bar that will not interfere with the FoldAR Upper when folded and the bar is completely collapsed. Also comes with the FoldAR SCW Set Screw and Magnet Catch. Specifications for Dead Foot Arms Subcompact Weapon 4in Stock for 9mm AR Platform Rifles Gen 2: Manufacturer: Dead Foot Arms Color: Black Weight: 15.4 oz Country of Origin: USA Features of Dead Foot Arms Subcompact Weapon 4in Stock for 9mm AR Platform Rifles Gen 2: Left-handed cheek rest Dual antirotation QD Mounts Hard stop at last LOP Dual rails for added stability Package Contents: Dead Foot Arms Subcompact Weapon 4in Stock for 9mm AR Platform Rifles Gen 2 Dead Foot Arms 80045: Subcompact Weapon 4in Stock for 9mm AR Platform Rifles Gen 2 Black Anodized