The AWSS18 Rifle is the perfect choice for 3-Gunners, or those looking to build a DMR / SPR style rifle. Whether you need tack driving accuracy or a longer range varmint rifle, Asylum Weaponry's AWSS18 is the right tool for the job. Asylum Weaponry is committed to presenting the consumer and the firearms industry with quality products. Designed and built with meticulous attention to detail from start to finish. From our hands to yours, all of Asylum Weaponry's products will offer a lifetime of performance and reliability. Our AR-15 rifles and pistols are machined to MIL-SPEC dimensions and all components are hand fitted. Every component is of the highest quality and is tested to ensure correct placement and tolerances. Specifications Manufacturer: Asylum Weaponry made in Saint Marys, PA Model: AWSS18 Caliber: .223 Remington / 5.56 NATO* *(.223 Remington ammunition typically provides the best accuracy results in this .223 Wylde chamber, however this rifle will also chamber and cycle 5.56 NATO ammo just fine.) Capacity: (1) 30 Round PMAG Barrel: 18" 416 Stainless Steel, Hand-Lapped, Medium Profile Rate of Twist: 1 in 8" Muzzle: 1/2X28 Threads, A2 Flash Hider Gas System: Rifle-Length Trigger: POF-USA drop-in Single-Stage Sights: None, Optics Ready Flat-Top Handguard: 12.5" KeyMod, Free-Floating, Aluminum Bolt Carrier Group: Mil-SPEC, MPI, 9310 Steel M16 Profile Hardware: MagPul MOE+ Pistol Grip Magpul SL 6 Position Stock MagPul Enhanced Trigger Guard Aluminum Extended Magazine Release