Lead & Steel Standard 5.56mm Bolt Carrier Group – Gas Nitride

The Lead & Steel Standard BCG is our fully assembled nitrided bolt carrier group made to drop into your AR15, M16, or M4.

Specs:

• Standard Grade 8 fasteners
• Shot-peened 9310 bolt, batch proof tested
• Gas nitride coated; superior to standard salt bath nitride
• Machined extractor installed with viton o-ring and 4 coil chrome silicon extractor spring
• Laser engraved with LS insignia so you can cyberbully an impoverished Redditor