Doublestar Corp. Extractor Kit, Extractor Spring/Pad/Pin, 3 Gas Rings, O-ring, Black AR790

Doublestar Corp. Bolt Carrier Rebuild Kit, Contains 1 Extractor, 1 Extractor Spring With Bumer Pad, 1 Set of 3 Gas Rings, 1 O Ring, 1 Extractor Pin, 1 Firing Pin, 1 Firing Pin Retaining Pin, 1 Gas Key, 2 Gas Key Screws AR789

Doublestar Corp. Bolt Carrier Group, Chrome Lined, Includes O Ring AR100

Doublestar Corp. AR15 Lower Parts Kit, 223 Rem/556NATO, Black Finish, Includes Fire Control Group, Fire Control Group Pins and Springs, Bolt Catch Assembly, Magazine Catch Assembly, Front Pivot Pin, Rear Takedown Pin, Takedown Springs (2), Takedown Detents (2), Trigger Guard Pin, Pistol Grip, Screw and Washer, Buffer Detent, Buffer Detent Spring AR270

Doublestar Corp. Superlite .750 Gas Block, Black Finish DSC627