KAK Industry AR-15 M16 Profile Bolt Carrier Group 5.56

The bolt carrier group takes more abuse than any other part of an AR-15, and KAK builds this one to the M16 profile with the full rear mass. The extra weight back there slows the carrier down a touch, which is generally what a rifle wants when it is dirty, cold, or running a suppressor.

The carrier is chrome lined inside with a phosphate exterior, the combination that has been standard on service rifles for decades because chrome resists wear where the carrier rides and phosphate holds oil and fights corrosion everywhere else. The cam pin is phosphate coated to match. Built for 5.56 and 223 Remington chambers in standard AR-15 uppers.