The MAC IX is a rugged, modular 9mm PCC built for reliability and performance. It features a proven direct blowback system for minimal recoil and fast follow-up shots, and accepts MP5-style magazines for dependable, familiar feeding. With a monolithic upper, full-length Picatinny rail, and M-LOK handguard, it's mission-ready-whether for competition, defense, or the range. Notable Features: Direct Blow Back Design MAC-5/MP5 Magazine Compatibility Paddle/Button Magazine Release Picatinny Rail Interface for Braces or Stock (All NFA Rules Apply) Machined Tri-Lug Suppressor mount 1yr Warranty/Lifetime Service Plan Includes Hard Case, 2 Magazines, Cleaning Kit, Sling, Flash Hider, & Owners Manual Additional Info: Weight: 5.1lbs Barrel Length: 6.5\" Barrel Thread Pitch: 1/2x28 TPI Overall Length: 15.97\" Width: 1.75\" Height: 8\" Finish: Anodized Sights: AR/M4 BUIS Style Detachable Sights