Tactical Collaboration Fab Defense GL-Shock Kit Telescoping Buttstock w/ Adaptor, Tube & Castle Nut Mossberg 500 12 Gauge Shotgun (Stock + Forend Included) "The ultimate kit for a home defense 12 gauge builder" About the Stock: -The ultimate upgrade for the home defense shotgun builder. -Made in Israel. -Fits Milspec tube. -Aluminum tube included -USA Made -Snug fit About The Forend -Milled-aluminum side-rails (Excellent for accessories mounting) -Mount a vertical-grip in seconds. -The forend is constructed of virtually indestructible and fully weatherproof/heatproof nylon. -Choate style 7 3/4" length. -You can bang on this thing with a sledgehammer and it will not break. -Excellent around tight corners and home home or office. -The ultimate tactical shotgun setup, ideal for your home-defense gun. -Perfect for Telescoping stock with adjustable length of pull, adjusts to thick clothing or body armor. -Milspec tube and Milspec castle nut included (no spring required) Technical Information: Mil-Spec Stock: Tube Diameter: 1.145" to 1.150" Weight: 0.50 LB Length of Pull: 10.70" to 13.95" Full setup weighs under 18 ounces. Stock is 8 ounces Six Positions About the AIM Tactical Adaptor: -Zytel Construction -Lifetime warranty SYSTEM CONCEPT AND PRODUCT OVERVIEW The most important capability of these adapters is to facilitate the use of collapsing or telescoping stocks, which provide a shorter length of pull (LoP) than the factory stock, which is especially important for law enforcement or “tactical” operators. In addition, these stock adapters accept a hydraulic buffer from Crosshair™ that reduces felt recoil. The AIM is by far the most effective of several shotgun stock systems on the market.