Evolve Weapons Systems Bolt Carrier Group Black

Evolve Weapons Systems Bolt Carrier Group Black. The black phosphate finish improves reliability by absorbing lubricant and allowing for easy cycling and the properly staked gas key won't come loose. This Bolt Carrier Group includes a Mil-Spec black extractor insert a Viton O-Ring and Mil-Spec extractor spring. Also included is a Sprinco Extra Power 5 Coil extractor spring and Mil-Spec Black insert to giving the end user the choice of what they want to use for their application without having to purchase anything additional. All Evolve Weapons Systems products come with an unconditional Lifetime Warranty. Specifications for Evolve Weapons Systems Bolt Carrier Group: Manufacturer: Evolve Weapons Systems Color: Black Finish: Phosphate Fabric/Material: 8620 Steel Caliber: 5.56x45mm NATO Hand: Right Features of Evolve Weapons Systems Bolt Carrier Group 5.56 NATO 8620 Steel Carrier C158 Bolt 4130 Heat Treated Chrome Lined Gas Key Phosphate Finished Full Auto Rated Chrome Lined Machined Tool Steel Extractor and Ejector MGUNS OCKS Gas Key Fasteners USGI Properly Staked and Torqued Package Contents: Evolve Weapons Systems Bolt Carrier Group Evolve Weapons Systems EWS-BCG: Bolt Carrier Group Black