The AR-STONER™ Nitride Bolt Carrier Group is a great option for your next LR-308. Machined to strict mil-spec tolerances, this bolt carrier group is drop-in ready. The Nitride finish provides enhanced reliability and is more resistant to wear. With a 308 Winchester bolt face, this Bolt Carrier Group is ideal for your next LR-308 Marksman Rifle. Note: Upon installation, headspace should be verified by a qualified gunsmith. Carrier Machined from 8620 .308 Bolt Machined from 9310 Forged Gas Key Properly Staked S7 Tool Steel Extractor Heavy Duty Extractor Spring Grade 8 hardware

The Andro Corp AR-10 Bolt Carrier Group is a durable and high-performance component, featuring an 8620 steel carrier and a .308 bolt machined from 9310 steel. The bolt is shot-peened and undergoes high-pressure testing and magnetic particle inspection for reliability. A properly staked forged gas key, S7 tool steel extractor, and heavy-duty extractor spring contribute to consistent function. Grade 8 hardware adds strength, making this BCG suited for demanding use. Finished with a nitride coating, this BCG provides enhanced wear and corrosion resistance. FEATURES: