The extended stabilizer, which now comes standard, enables one-handed firing for better shooting performance. It also comes with a Velcro strap fastener which provides a custom fit to any user. MCK is the most cost effect conversion kit in the world. Fastest assembly/disassembly conversion kit on the market. Improving accuracy dramatically up to 200 yd. Features: No pistol disassembly required - just place pistol into the kit, lock, and go Allows for multiple handgun models into one platform Ergonomic finger groove grip for more stability Top picatinny rail, allowing a combination of sights and/or optics Side picatinny rails for mounting additional accessories, i.e. thumb-rests Ambidextrous, fast and easy handling Right-folding stock/arm brace for easy concealment and carry, locks in the folded position Front spare magazine holder for a faster reload Built-in charging handle allowing for quicker assembly/disassembly Exposed slide release for direct contact and easier use