Lantac M-SPEC BCG 308/762 Black NITRIDE

Description

Product Overview

The Lantac M-SPEC BCG 308/762 is a full auto-style AR bolt carrier group built to milspec dimensions with upgraded materials and surface treatment. The carrier is made from 8620 steel that is heat treated, hard turned, and ground for tight internal tolerances, while the bolt is produced from Carpenter 158 or 9310 steel with MPI processing and shot peening. A QPQ nitride finish provides strong corrosion resistance and durability, complemented by a CP-R360 domed cam pin for smooth operation and reduced wear.

Key Features

• QPQ nitride finish for enhanced corrosion resistance and long service life
• 8620 steel carrier heat treated and hard turned/ground to milspec internal dimensions
• MPI Carpenter 158 or 9310 bolt, shot peened, and hard turned/ground for consistent durability
• CP-R360 domed cam pin made from 17-4PH stainless steel in H900 condition to reduce friction and wear
• Full auto-style carrier built for reliable AR function in 308/762 configurations
• Made in the USA with a lifetime warranty

Built for dependable budget builds without cutting corners, the Lantac M-SPEC BCG 308/762 is a practical upgrade for shooters who want proven materials, tighter tolerances, and corrosion-resistant performance.