BST Enhanced M16 Nitrided 5.56/.223/300BO BCG

The BST Enhanced Nitride BCG’s features:

• M16 profile 5.56/223/300BLK
• Friction points reduced while maintaining stability
• Nitrided throughout assembly, including carrier and key
• 9310 Bolt
• MPI’d
• Shot Peened
• Mil-Spec Tool Steel Extractor w/ Crane (NAVSPECWAR) o-ring & spring
• Mil-Spec Staking on the Keys
• 100% Made in the USA
• H&M Black Nitride plating for a deep, smooth black nitride finish
• Weight 11.5 ounces