The LanTac USA M-SPEC Bolt Carrier Group is engineered for precision and durability in AR-10 and M16-style rifles chambered in .308 Winchester or 7.62 NATO. This full-mass BCG is finished in black nitride, offering a sleek, corrosion-resistant surface with exceptional wear characteristics. Designed to meet the demands of serious shooters and professional-grade builds, this bolt carrier group is a high-performance upgrade for your large-frame AR platform.
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The 8620 steel carrier is heat treated, hard turned, and ground for superior strength and operational smoothness, even under high round counts. The bolt is crafted from MPI-tested Carpenter 158 or 9310 steel, then shot peened, hard turned, and ground to deliver dependable cycling and long-term durability. These processes ensure the bolt group can handle the increased pressures and forces associated with .308/7.62 cartridges.
With a black nitride finish, this BCG offers enhanced lubricity, ease of cleaning, and excellent resistance to fouling and corrosion. Backed by a lifetime warranty and made in the USA, the LanTac M-SPEC is built for shooters who prioritize performance, quality, and reliability in their AR10 rifles.
LanTac M-SPEC BCG Specifications
Manufacturer: LanTac USA LLC
Model: M-SPEC
Category: Bolt Carrier Groups
Caliber Compatibility: .308 Winchester / 7.62 NATO
Platform: AR-10 / M16 Style
Carrier Material: 8620 Steel (Heat Treated, Hard Turned & Ground)
Bolt Material: Carpenter 158 or 9310 Steel (MPI Tested, Shot Peened, Hard Turned & Ground)
Finish: Nitride (Black)
Application: AR10 Builds / Precision Use / High-Duty Cycles
Warranty: Lifetime Warranty
Country of Origin: Made in the USA
More Information
Condition
New in Box
Finish Per Color
Black
Manufacturer
LanTac
Manufacturer Part Number
01-MSPEC-762-NIT-BC
Model
M-SPEC BCG
Type
Rifle Parts
UPC
711841794101
WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to WWW.P65WARNINGS.CA.GOV
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