Nickel Boron Bolt Carrier Group 6.5 Grendel II

Nickel Boron Bolt Carrier Group 6.5 Grendel II

Features:

• 6.5 Grendel II
• Nickel boron finish
• M16 cut
• Aircraft quality 8620 steel carrier
• 4130 steel gas key
• Properly staked grade 8 gas key screws
• Carpenter 158 steel bolt
• 4140 steel extractor
• MIL-SPEC O-ring
• MIL-SPEC gas rings
• 4140 steel cam pin
• 8740 steel firing pin with hard chrome finish
• Magnetic particle inspected
• Proudly made in the U.S.A.