OTUS SMX-12 LUX ELITE 12 GAUGE System: Inertia Operated Semi Automatic Chamber: 3 1/2" , 3", 2 3/4" Ammunition: 3 1/2" , 3", 2 3/4" Receiver Material: T6 7075 Hardened Aluminum Furniture Material: Carbon Fiber Color: Carbon Fiber Furniture Black and Silver DC Cerakote Barrel: 4140 Full Steel Smooth Chrome Lined 28" Choke: Benelli Crio+ Threads (comes with 3 TITAN-X extended chokes 1,3,5) Stock: Fixed Stock With Our Patented SHOCK FORCE Recoil System Ejector: Spring Assist Ejector Charging Handle: Advanced Oversized Trigger: Advanced Trigger Grip: Textured Sling Mounts: Front And Rear Premium Sling Swivels Included Cheek Pad: Soft Rubber Cheek Pad Insert (Comes With Short and Mid)