Lantac USA AR-15 NiB Side Charging Enhanced Bolt Carrier Group

The Lantac USA AR-15 NiB Side Charging Enhanced Bolt Carrier Group features nickel-boron-coated 8620 steel construction with a shot-peened 9310 steel bolt for superior strength and reliable performance with semi-auto and full-auto systems. A knurled 440 stainless steel handle offers a firm, non-slip grip and reliable performance. The patent-pending 17-4PH stainless steel CP-R360™ domed head cam pin ensures smooth operation with reduced wear. The chrome-lined steel gas key features Grade 8 hardware with proper staking methods to ensure proper function. The flared boss at the tail offers improved accuracy and reliability. Magnetically particle inspected for smooth performance. Compatible with side charging AR-15 upper receivers ONLY. Will NOT fit standard uppers.