The Sig Sauer MCX Spear 5.56 NATO AR-15 Pistol is a versatile and reliable firearm designed for both recreational and tactical use. Its semi-auto action and adjustable gas system make it suitable for various shooting applications. The pistol features a 11.5" barrel, which provides a good balance between accuracy and portability. The SIG Flat Blade trigger offers a smooth and consistent pull. This firearm is also equipped with an M-LOK accessory rail, allowing users to attach various accessories as needed. The folding pistol brace with push button makes it easy to handle and store. We offer fast shipping on this product, so you can get your hands on it quickly. As one of the most affordable options in its class, this pistol is a great choice for those looking for a high-performance firearm without breaking the bank. It's currently on sale, making it an even more attractive option for buyers. Product Features and Specifications: Caliber: 5.56 NATO Twist Rate: 1:7 Barrel Length: 11.5" Action: Semi-Auto Trigger: SIG Flat Blade Match Threads: 1/2" x 28 Accessory Rail: M-LOK Forward Assist: Yes Gas System: Gas Piston Adjustable Gas: Yes Finish: Coyote Brace: Folding Pistol Brace with Push Button Weight: 6.8 lb Magazine: (1) 30rd Polymer Mag