Guntec USA AR-15 Bolt Carrier Group BCG Mil-Spec Nickel Boron

Guntec USA AR-15 Bolt Carrier Group BCG Mil-Spec Nickel Boron. The Guntec USA BCG utilizes an oil key locking system that prevents any unintentional bolt body openings. This is the same type of locking system used on high stress components such as our AR receivers. This new BCG is made from 8620 steel and has an oil key locking system like that found on high end firearms. The new Bolt Carrier Group has an oil key locking system like that found on high end firearms. This new bolt carrier has an oil key locking system like that found on high end handguns. The Rainbow PVD (Physical Vacuum Deposition) finish is durable lubricious and provides a rainbow of durability and lubricity. The new Guntec USA Bolt Carrier Group will fulfill your needs for years to come. Specifications for Guntec USA AR-15 Bolt Carrier Group Mil-Spec BCG: Manufacturer: Guntec USA Fabric/Material: 8620 Steel Carrier Material: 8620 Steel Bolt Material: 9310 Steel Caliber: 5.56mm .223 Remington Gun Make: AR Platform Gun Model: AR-15 Hand: Right Weight: 11.5 oz Features of Guntec USA AR-15 Bolt Carrier Group Mil-Spec BCG Hydraulically Staked CL Key Grade 8 Screws To Mil-Spec Aesthetic Coating Which Improves Durability & Lubricity Gloss Rainbow PVD (Physical Vapor Deposition) Finish On Bolt Carrier Nitride Finish On Bolt Firing Pin Retainer Staked Screws & CAM Pin Package Contents: Guntec USA AR-15 Bolt Carrier Group Mil-Spec BCG What firearm models does the manufacturer say Guntec USA AR-15 Bolt Carrier Group Mil-Spec BCG is compatible with? The manufacturer says that Guntec USA AR-15 Bolt Carrier Group Mil-Spec BCG is compatible with AR-15GUNTEC USA GT-BCG-NB: AR-15 Bolt Carrier Group Mil-Spec Nickel Boron