Items Available For Purchase Today Object reference not set to an instance of an object. See All Bushmaster Gas Piston Conversion Kit For Sale from: Jays Guns and Accessories ( FFL) | Positive feedback: 99% View | Verified Seller | 11729 Completed Sales View Sellers Items Bushmaster Gas Piston Conversion Kit For Sale from: Jays Guns and Accessories | Positive feedback: 99% View | Verified Seller | 11729 Completed Sales View Sellers Items Jays Guns and Accessories Seller Since: May. 2001 Identity Verified ( CRESTVIEW, FL ) Trusted Seller This seller is an FFL City: Crestview State: FL SOLD - $439.99 4% Credit Card Processing Fee will apply. Shipping: $10.00 (or FREE in-store pick up!) Accepted Payment Methods: Returns: Only if Defective This Seller Accepts Instant Online Payments Description: This is a Bushmaster Gas Piston kit that converts your current Mil-spec M4 type carbine to a gas piston style rifle. This replaces the original gas impingement system tube and bolt carrier with a short-stroke piston and operating rod that is designed to enhance your rifle. It is easily installed by you or your gunsmith. This kit includes: solid bolt carrier, tappet rod with return spring, gas piston, gas piston housing, barrel clamp, handguards, and various other smaller parts, etc. Condition: New In Box Item #: 923999464 Stock No.: CONV6 Location: FL Trades Accepted: Share: Shipping Notes: See Description Items You've Viewed Recently Bushmaster Gas Piston Conversion Kit $439.99 SELLER: Jays Guns and Accessories (FFL Dealer) Add To Cart