The Wilson Combat Low Mass BCG (Wilson Combat part no. TR-BCA-LM-NB-308) is a reduced-mass bolt carrier group built for AR-10/.308 pattern rifles, coated in nickel boron for reduced friction and easier cleaning.

Key Specifications

• Built for AR-10/.308 pattern rifles.
• Coated in nickel boron for reduced friction and easier cleaning.
• Built as a low mass carrier, lighter than a standard full-mass AR-10 BCG.
• Functions as the bolt carrier group that locks, extracts, and ejects each round during cycling.
• Classified as a firearm part/accessory, not a regulated firearm itself — no FFL transfer required to purchase.

Frequently Asked Questions

What platform does this bolt carrier group fit? This BCG is built for AR-10/.308 pattern rifles.

What does ‘low mass’ mean for this BCG? A low mass carrier weighs less than a standard-mass BCG, which can change the rifle’s cycling characteristics and felt recoil when paired with a matched buffer/spring setup.

Buy the Wilson Combat AR-10/.308 Low Mass BCG – Nickel Boron

Order the Wilson Combat AR-10/.308 Low Mass BCG – Nickel Boron today for fast, insured shipping from a Lubbock, TX gun shop. Browse more Wilson Combat parts in our Rifle Parts category.