This Micro Conversion Kit is a lightweight and sturdy platform for Sig Sauer handguns. It has a barrel shroud made of aluminum with a polymer body. The extended stabilizer which now comes standard enables one-handed firing for better shooting performance. It also comes with a hook and loop 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 yards. MCK comes in two versions one is a NON-NFA product (with standard long stabilizer brace) and the other is a NFA product (with stock). 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 Allows for quicker assembly-disassembly Perfect for safe action Fits multiple handgun models Easy concealment and carry Perfect for law enforcement Specifications: Width: 2.48 Height: 5.70 Length: 13.70