KAK K-SPEC M16-Profile Bolt Carrier Group, 7.62x39mm, Chrome & Phosphate, Black

This Kak Industry Llc. bolt carrier group (brand part no. 425-0512-009) is sized for 7.62x39mm and uses an M16-profile carrier body — the heavier, staked-gas-key carrier geometry originally developed for M4/M16-family rifles — inside a standard semi-automatic bolt and carrier assembly. The carrier’s profile does not by itself determine whether a rifle fires semi- or full-automatic; that’s governed entirely by the fire control group in the lower receiver, and this BCG functions exactly like any other semi-auto AR-pattern bolt carrier group when installed in a standard, unmodified semi-automatic lower. It’s finished in chrome and phosphate, and this AR bolt carrier group is part of KAK’s K-SPEC line.

Key Specifications

• Bolt face and dimensions machined for 7.62x39mm.
• Uses an M16-profile carrier body, the heavier M4/M16-pattern carrier geometry.
• Finished in chrome and phosphate, in black.
• Sold under KAK’s K-SPEC product line.

Frequently Asked Questions

Does an M16-profile carrier make my semi-auto rifle shoot automatically? No. Firing mode is controlled entirely by the fire control group in the lower receiver, not the bolt carrier’s external profile. In a standard, unmodified semi-automatic lower, this BCG functions as an ordinary semi-auto bolt carrier group.

Will this fit a 5.56 AR-15? No, this BCG’s bolt face is machined for 7.62x39mm; a 5.56 build needs the corresponding 5.56 bolt carrier group.

Buy the KAK K-SPEC M16-Profile Bolt Carrier Group, 7.62x39mm, Chrome & Phosphate, Black

A chrome-and-phosphate BCG built to M16-pattern geometry is a durable choice for a 7.62×39 AR build. Order this from a Lubbock, TX gun shop and our team will get your order processed right away.