KAK K-SPEC AR-15 Bolt Carrier Group 5.56x45mm NATO Phosphate Black

The KAK K-SPEC Enhanced is a bolt carrier group for AR-15 style rifles, machined to the M16 full-auto profile and finished in black phosphate. It is intended for semi-automatic use in platforms chambered for 5.56x45mm NATO, .223 Remington and 300 Blackout.

Its carrier rails are slotted and angled to move fouling and debris away from the receiver contact surfaces, a design aimed at reliable operation in sand, mud, dirt and with suppressors. The group is described as requiring no additional gas or recoil tuning when run suppressed.

The bolt carrier group is sold as a single component for AR-15 replacement or upgrade.

• Type: Bolt carrier group
• Platform: AR-15 (M16 profile)
• Calibers: 5.56x45mm NATO, .223 Remington, 300 Blackout
• Action: Semi-automatic
• Finish: Black phosphate
• Color: Black
• Feature: Slotted angled carrier rails for debris dispersal