Aero Precision .308 Winchester Bolt Carrier Group
Original price was: $195.00.$175.52Current price is: $175.52.
Now Available!
Legal To Own And Purchase!
Prices are discounted until the end of: 12th May 2026</
Here’s the clean HTML product description for your Aero Precision .308 Winchester Bolt Carrier Group:
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The Aero Precision .308 Winchester Bolt Carrier Group delivers mil-spec reliability for large-frame AR builds, combining precision machining with proven materials for consistent cycling under heavy loads.
What you get
- Bolt carrier made from 8620 tool steel with phosphate finish
- 9310 steel bolt, case-hardened and MPI/HPT tested
- 4130 steel gas key secured with Grade 8 hardware and staked per mil-spec
- 8740 steel firing pin with hard chrome coating
- Forward assist serrations and laser-engraved Aero Precision logo
Build and finish
The carrier body undergoes a manganese phosphate treatment that exceeds standard mil-spec corrosion resistance. Unlike budget options, the gas key uses proper torque specs and four-point staking to prevent loosening during sustained fire. The bolt’s 9310 steel construction provides superior tensile strength compared to standard Carpenter 158 formulations.
Critical wear surfaces like the bolt lugs and cam path receive additional machining attention to maintain headspace consistency. The firing pin channel is honed to eliminate drag, while the chrome-plated pin itself resists peening in high-pressure .308 Winchester loads.
Compatible platforms
- AR-10 pattern rifles (DPMS/SR-25 compatible)
- Aero Precision M5 receivers
- Other .308 Winchester large-frame AR builds
Installation notes
This BCG drops directly into compatible .308 upper receivers without modification. Apply a light coat of lubricant to the carrier rails and bolt lugs before initial use. Check headspace with gauges if pairing with a new barrel.
Ohio Gun Shop stocks this Aero Precision BCG for builders who demand components that match the durability of their .308 platform. The combination of material selection and inspection processes makes this bolt carrier group a logical choice for duty, competition, or extended-range shooting applications.
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