B&T Firearms BT-440310-S-US-TB KH9S 9mm Luger 25+1 6″ Black Threaded Barrel, Black Telescoping Brace, Black Polymer Folding Grip, Ambidextrous

The KH9S is a limited-production variant of our popular KH9 Covert, a purpose-built sub-gun for extreme concealment and rapid deployment. Featuring a side mounted magazine system inspired by the Sten submachine gun, the KH9 S integrates a side-folding magazine well and folding pistol grip, each rotating 90 degrees. This configuration allows the already flat KH9 platform to fold even further, enabling discreet stowage in shallow, narrow spaces while remaining immediately deployable. When unfolded, the side-mounted magazine well naturally guides the magazine into alignment with the chamber, enabling fast, intuitive loading via the top mounted bolt hold-open button or the charging handle. The KH9S utilizes a double-action trigger system with a three-position selector- Safe, Fire and Decock (down), allowing the hammer mass to be safely decocked without manipulating the trigger. Includes sling bag, Tele-Stock, top mount charging handle, flip-up iron sights and one 25rd magazine optimized for maximum compactness when folded, while maintaining full compatibility with all standard B&T APC9 polymer magazines.