Upper Parts All | Parts kit | Barrels | Upper Receivers | Handguards | Charging Handles | Bolt Carrier Groups | Muzzle Accessories | Gas Block | Daniel Defense Bolt Carrier Group Mil-Spec AR-15 5.56x45mm Chrome Lined Phosphate $220.00 Standard Barrel Nut $12.00 Delta Ring Assembly $15.00 Handguard Cap Round .750" $5.00 Front Swivel $4.00 A2 FSB Pinning from $75.00 Melonite Gas Tubes $15.00 Stainless Steel Gas Tubes $15.00 .750 Low Pro Gas Block $20.00 Low Pro Gas Block Pinning from $45.00 QRT SLING W/ QUICK RELEASE BUCKLE, M4 $40.00 Spike's Tactical, Barrel, 223 Rem, 556NATO, 16" Hammer Forged Barrel, 1:7 Twist $315.00 Toolcraft AR-10 / 308 / 6.5 Creedmoor Bolt Carrier Group – Black Nitride $170.00 AR-15/AR-10 Gen 4 Low Profile Adjustable Gas Block $30.00 M5 .308 Assembled Upper Receiver - Anodized Black $165.00 SHTF 50 BMG mag fed upper conversion $2,450.00 COLT complete upper 14.5" LE6921CK $800.00 9.3" Super Modular Rail MK14 M-LOK® $275.00 The WARHAMMER Mod2 AR-15 Ambidextrous Charging Handle by Breek Arms $55.00 Mil-Spec 7075-T6 Charging Handle $20.00 Extended A2 Flash Hider 1/2X28 $20.00