BT SA-17 Rifle Kit Bolts it allows for higher rates

it allows for higher rates of fire and a lower mechanical dwell

Features: Full Metal Receiver and Barrel Assembly Stamped Steel Top Cover Nylon Fiber Polymer Handguard and Stock Adjustable Front and Rear sights Solid Rubber Cheekpad Scope attachment point for SVD Style Scopes (scope not included) Full Metal 200rd Hi-Cap Magazine included Selectable Semi or Full-Auto setting Quick Change Spring Design Recommended for use with 0

and Select-A-Mode and Training Mode

Low-Profile Feed Neck With Self Locking Sprocket Thumbwheel NEW

Consistently round

BT SA-17 Rifle Kit Bolts it allows for higher ratesParts List: Mock Suppressor 6" Barrel Extension Additional Breech Inserts (. 684 and . 692) BT Clamp Elbow Dummy CO2 Stainless Steel 14" hose Air Source Adapter (ASA)