A3 Industries Rear Stock Adapter for B&T GHM9 Polymer/Aluminum Picatinny Black. The A3 Industries adapter allows the use of our complete line of modular stocks and braces and can also be configured with our Picatinny rail. The Picatinny rail will allow you to adapt any side folding stock (or arm brace) designed for use with Picatinny style mounts. Comes complete with new steel upper mounting dowel and HK-style ILWT take-down pin. Steel Quick Disconnect (QD) socket available that fits either side of the adapter. The bolt pattern and locating lug on the rear of the adapter provides a positive modular mounting platform for a wide variety of our available stocks/braces. Specifications for A3 Industries Rear Stock Adapter for B&T GHM9: Manufacturer: A3 Industries Condition: New Color: Black Gun Make: Brugger & Thomet Gun Model: Universal Gun Type: Carbine Fabric/Material: Polymer/Aluminum Additional Features: Picatinny Finish: Type II Low Gloss Anodized Features of A3 Industries Rear Stock Adapter for B&T GHM9 Polymer/Aluminum hybrid design OE-fit to receiver with reinforced hinge mount and steel locating dowel New HK-style takedown pin included 2-position QD lug for mounting sling No modifications to firearm needed Modular design for various cross-platform use Large #10 threads and positive lug for increased mount stability Package Contents: A3 Industries Rear Stock Adapter for B&T GHM9 What firearm models does the manufacturer say A3 Industries Rear Stock Adapter for B&T GHM9 is compatible with? The manufacturer suggests that A3 Industries Rear Stock Adapter for B&T GHM9 is compatible with UniversalA3 Industries RSA004: Rear Stock Adapter for B&T GHM9 Polymer/Aluminum Picatinny Black