FAB Defense GL-Shock with a GSPC Cheek Riser and GSPCP Picatinny Rail Adaptor Black. These AR15 Stocks from the experts at FAB Defense feature a silicon chrome alloy spring in the recoil-reducing mechanism as well as a unique patented anti-rattle mechanism. The FAB Defense GL-Shock with GSPC Cheek Riser and GSPCP Picatinny Rail Adaptor uses a smooth design meant to avoid snagging on any clothing or gear. For a totally adjustable cheek rest and an advanced recoil-reducing stock count on the FAB Defense GL-Shock Buttstock. Specifications for FAB Defense GL-Shock with a GSPC Cheek Riser and GSPCP Picatinny Rail Adaptor: Manufacturer: FAB Defense Gun Model: AR-15 Buffer Tube Size: Commercial or MIL-Spec Length: 180 mm 7.09 in Gun Type: Rifle Additional Features: Compatible with Buffer tubes in Commercial or Mil-Spec diameters Weight: 0.597 lb 271 g Height: 131 mm 5.16 in Width: 2.05 in 52 mm Features of FAB Defense GL-Shock Buttstock w/GSPCP Picatinny Rail Adaptor GSPC Cheek Riser 1S0-BSC-GLS: Unique Patented Anti-Rattle Mechanism. Sleek New Design with No Protruding Parts Will Not Get Caught on Gear and Webbing. Unique New Slick and Quick Operated Inversed Positioning Lever. Integral Ribbed Rubber Butt Pad with a Non Slip Design. Integrated Quick Detach QD Sling Swivel Connectors on Both Sides. Watertight Battery Storage for Two CR123A 3V Lithium Batteries / AA 1.5v. Fits Perfectly on Both Tubes - Mil-Spec and Commercial Aftermarket. Made from Mill-Spec Reinforced Composite Polymer. Adjustable Cheek Rest with built-in dual Picatinny rails. Allows optimal buttstock functionality. Ideal Mounting Solution for SH-5. Package Contents: FAB Defense GL-Shock Stock w/GSPC Cheek Riser GSPCP Picatinny Rail Adaptor 1S0-BSC-GLS What firearm models does the manufacturer say FAB Defense GL-Shock with a GSPC Cheek Riser and GSPCP Picatinny Rail Adaptor is compatible with? The manufacturer suggests that FAB Defense GL-Shock with a GSPC Cheek Riser and GSPCP Picatinny Rail Adaptor is compatible with AR-15FAB Defense fx-glshockpcp: GL-Shock with a GSPC Cheek Riser and GSPCP Picatinny Rail Adaptor Black FX-GLSHOCKPCP