Upper Parts Parts kit | Barrels | Upper Receivers | Handguards | Charging Handles | Bolt Carrier Groups | Muzzle Accessories | Gas Block | All Parts kit Barrels Upper Receivers Handguards Charging Handles Bolt Carrier Groups Muzzle Accessories Gas Block Standard Barrel Nut $12.00 Add To Cart Delta Ring Assembly $15.00 Add To Cart Handguard Cap Round .750" $5.00 Add To Cart Front Swivel $4.00 Add To Cart A2 FSB Pinning from $75.00 Select Pinning Type 1/8 Spring Pins 1/8 Taper Pins MAGADUTY 5/32 Spring Pins Add To Cart Melonite Gas Tubes $15.00 Select Length Pistol Carbine Mid Length Rifle Length Add To Cart Stainless Steel Gas Tubes $15.00 Select Length Piston Carbine Mid Length Rifle Length Add To Cart .750 Low Pro Gas Block $20.00 Add To Cart Low Pro Gas Block Pinning from $45.00 Select Pinning Type Pinning Only Pin & Dimple MAGADUTY Add To Cart QRT SLING W/ QUICK RELEASE BUCKLE, M4 $40.00 Add To Cart Spike's Tactical, Barrel, 223 Rem, 556NATO, 16" Hammer Forged Barrel, 1:7 Twist $315.00 Add To Cart Toolcraft AR-10 / 308 / 6.5 Creedmoor Bolt Carrier Group – Black Nitride $170.00 Add To Cart AR-15/AR-10 Gen 4 Low Profile Adjustable Gas Block $30.00 Add To Cart M5 .308 Assembled Upper Receiver - Anodized Black $165.00 Add To Cart SHTF 50 BMG mag fed upper conversion $2,450.00 Add To Cart COLT complete upper 14.5" LE6921CK $800.00 Add To Cart 9.3" Super Modular Rail MK14 M-LOK® $275.00 Add To Cart The WARHAMMER Mod2 AR-15 Ambidextrous Charging Handle by Breek Arms $55.00 Add To Cart Mil-Spec 7075-T6 Charging Handle $20.00 Add To Cart Extended A2 Flash Hider 1/2X28 $20.00 Add To Cart