Home / Gun Accessory Parts / YM 556 Barrel Extension YM 556 Barrel Extension$20.00 556 Barrel Extension Out of stock SKU: YM-556BX Category: Gun Accessory Parts Product ID: 1601 Description Additional information Description Compatible with DPMS Additional information Weight 0.5 lbs Related products AR15 Milspec Charging Handle $20.00 Read more SB-15 Recoil Tube – Fits SIG arm brace $50.00 Add to cart