The design of the GForce One operating system produces unmatched functionality and reliability. The Gforce One comes with one plug and its made to handle 3" magnum shells, as well as light 1oz field loads. With our inertia operating system the GForce One features an oversized charging handle, safety and bolt release button; stainless steel recoil spring; Benelli Crio choke thread pattern and includes five extended chokes. The GForce One has a 3+1 capacity. It also comes with a 10+1 magazine tube extension kit just so you're ready for the spring snow goose seasons. Includes magazine tube extension and 5 factory chokes- cylinder, improved cylinder, modified, improved modified and full.Specifications: Stock Material: Synthetic Safety: Crossbolt Choke Configuration: Benelli Crio Plus Size: Full Size Action: Semi-Auto Gauge: 12 Gauge Sights: HiViz Fiber Optic Front Max Capacity: 10 Model: One Stock Type: Fixed OAL: 50" Operating System: Inertia Barrel Finish: Black Capacity: 3+1 Stock Finish Group: Black Barrel Length Range: 28" to 28.99" Barrel Material: Steel Stock Finish: Black Application: Field Weight: 7.30 lbs Weight Range: 7 lbs to 7.99 lbs Includes: Magazine Tube Extension Chamber: 3" Barrel Description: Vent Rib Receiver Finish: Black Barrel Length: 28"