The extended stabilizer 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 Gen 2 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 Gen 2 comes in two versions, one is a NON-NFA product (with standard long stabilizer brace), and the other is a NFA product (with stock). 8 Advantages over the first gen MCK: 1. The Gen 2 MCK features a new extended stabilizer which allows the user to fire the Gen 2 MCK in the folded and locked position. The new stabilizer is compatible with Gen 1 MCKs as well. 2. The Gen 2 rear door extends back an additional 15 degrees, making it easier to insert and extract the handgun. 3. The Gen 2 MCK accommodates suppressor height sights. 4. The Gen 2 MCK features a new charging handle which makes more surface contact with the rear of the handgun slide. 5. The Gen 2 MCK features an aluminum top picatinny rail for improved stability, durability, and accuracy. 6. The Gen 2 MCK accepts CAA USAs new brass catcher, made especially for our latest generation MCK. (Sold separately) 7. The Gen 2 MCK features an improved spare magazine holder that operates with a mag catch and magazine release button. 8. The Gen 2 MCK is suppressor friendly and can accommodate a suppressor up to 1.38in diameter. Specifications for CAA MCK Gen 2 Glock 17/19/19X/22/23/25/31/32/45 Micro Conversion Kit: Manufacturer: CAA Condition: New Gun Make: Glock Gun Model: Glock 25, Glock 19X, Glock 45, Glock 22, Glock 17, Glock 32, Glock 31, Glock 23, Glock 19 Additional Features: TAC Compartment Included Accessories: None Gun Type: Pistol Features of CAA MCK Gen 2 Glock 17/19/19X/22/23/25/31/32/45 Micro Conversion Kit: SUPRESSOR/COMPENSATOR READY 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 aluminum 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. Now able to fire while stabilizer is folded. 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 KIT ONLY Package Contents: CAA MCK Gen 2 Glock 17/19/19X/22/23/25/31/32/45 Micro Conversion Kit