Product Description TacFire MAR110 A2 Mil-Spec Buffer Tube Kit 223 Rem 5.56x45mm NATO AR-15 Black Aluminum Rifle AR-15 TacFire MAR110 A2 Mil-Spec Buffer Tube Kit 223 Rem 5.56x45mm NATO AR-15 Black Aluminum Rifle AR-15 at Shooting Surplus Browse all Shooting Surplus deals $31.65 In Stock at Shooting Surplus Price verified today Buy Now at Shooting Surplus Secure checkout Easy returns or compare prices Amazon eBay Product Details Brand Tacfire MPN MAR110 Gun Parts Tacfire