White Label Armory AR-10/15 Gas Key Screw Bolt Carrier Group Ten Pack Black. Each screw is made from Grade 8 steel alloy and finished with a black oxide coating for superior durability and corrosion resistance. Precision-manufactured in the USA these screws provide a secure fit and long-lasting performance?ideal for builds upgrades or routine maintenance. Specifications for White Label Armory AR-10/15 Gas Key Screw Bolt Carrier Group: Manufacturer: White Label Armory Color: Black Gun Make: AR Platform Gun Model: AR-15 Features of White Label Armory AR15/AR10 Gas Key Screw: Includes 10 gas key screws Compatible with AR15 and AR10 bolt carrier groups Grade 8 steel alloy construction Black oxide coating for durability and corrosion resistance Manufactured to Mil-Spec dimensions Ensures secure gas key installation Ideal for builds upgrades and repairs 100 percent American made Package Contents: White Label Armory AR15/AR10 Gas Key Screw What firearm models does the manufacturer say White Label Armory AR-10/15 Gas Key Screw Bolt Carrier Group is compatible with? The manufacturer suggests that White Label Armory AR-10/15 Gas Key Screw Bolt Carrier Group is compatible with AR-15White Label Armory WLA-PAC-3010-10: AR-10/15 Gas Key Screw Bolt Carrier Group Ten Pack Black