Caliber: 9mm Luger – Stock Adjustable Black Synthetic Chassis with Aluminum Free-Float Handguard – Capacity 17 – Barrel Length 6.50 – Overall Length 26 – Front Sight None – Rear Sight None – Barrel Feature Threaded – Thread Pattern 1/2-28 – Weight 6.1 lb. – Length of Pull 10.50-13.75 – Receiver Material Aluminum Alloy – Receiver Finish Type III Hard-Coat Anodized – Twist 1:10 RH – Grooves 6 – WARNING: This short-barreled rifle (SBR) is regulated under the National Firearms Act (NFA). Unauthorized possession transfer making or manufacture of an SBR is a federal felony and may violate state and local laws. Not available in all jurisdictions. For more information about the NFA please visit ATF.gov. – CNC-milled handguard that is Type III hard-coat anodized aluminum for maximum durability with Magpul® M-LOK® accessory attachment slots on all four sides for easy mounting of M-LOK-compatible rails and accessories. – Interchangeable magazine wells for use of common Ruger® and Glock® magazines. Ships with SR-Series/Security-9® pistol magazine well installed and an additional magazine well accepting Glock® magazines is included*. – Easy takedown enables quick separation of the barrel/forend assembly from the action for ease of transportation and storage. Takedown is as simple as locking the bolt back and verifying that the rifle is unloaded pushing a recessed lever twisting the subassemblies and pulling them apart. – Dead blow action features a custom tungsten dead blow weight that shortens bolt travel and reduces felt recoil and muzzle rise. Bolt is machined from heat treated chrome-moly steel to ensure strength structural integrity and durability. – Reversible magazine release and reversible charging handle to support left- or right-handed use or one-handed control manipulation while maintaining a proper firing grip*. – Cold hammer-forged chrome-moly steel barrel with ultra-precise rifling provides exceptional accuracy and longevity. – Threaded barrel with included thread protector allows for use of standard muzzle accessories. – Chassis system features a flared magwell for improved magazine reloading capabilities as well as integrated rear-mounted QD cups. – Lower receiver is fitted with a six-position telescoping Magpul® MOE® buttstock on a proprietary receiver extension capable of accepting both commercial and Mil-Spec aftermarket stocks. – Ergonomic pistol grip features an extended trigger reach for more precise trigger control. – Glass-filled polymer chassis system with integrated rear aluminum picatinny rail allows for the mounting of standard AR grips and picatinny rail-mountable stocks or extensions. – Light crisp trigger pull with minimal overtravel and positive reset utilizing proven 10/22® trigger components. – CNC-machined from an aerospace-grade aluminum billet the receiver includes an integrated Picatinny-style rail and is Type III hard-coat anodized for maximum durability. – Also includes: one SR-Series or Security-9® pistol magazine and hex wrenches for disassembly of the chassis and aluminum handguard as well as removal of the charging handle.