Lantac M-Spec Bolt Carrier Group 5.56x45mm/.223 Remington, Silver

The M-SPEC line represents a new standard in AR-15 accessories and components, adhering to strict military specifications while incorporating key enhancements to elevate performance beyond the traditional "milspec" rating. Designed for shooters who demand reliability without sacrificing affordability, M-SPEC products maintain precise dimensions, tolerances, and material quality while introducing refinements that improve durability and functionality. Offered in 5.56x45mm/.223 Remington, the Lantac M-SPEC NiB 5.56x45mm/.223 Remington Bolt Carrier Group is engineered for superior performance. Precision-machined to exact military specifications, the full-auto-style carrier features increased mass for enhanced reliability and is crafted from 8620 steel, case-hardened, and hard-turned to achieve flawless internal dimensions. Instead of the standard type M phosphate coating, this BCG is treated with a Nickel Boron (NiB) finish, delivering exceptional corrosion resistance, durability, and lubricity for smoother operation. The bolt itself is meticulously machined from Carpenter 158 or 9310 steel, shot-peened, and hard-turned to meet strict military specifications. To further optimize performance, each BCG is equipped with a Lantac CP-R360 domed head cam pin, precision-machined from 17-4PH stainless steel, hand-polished, and hardened to H900 condition. This advanced design minimizes friction and wear within the upper receiver, ensuring long-lasting reliability. Perfect for budget-conscious builders who refuse to compromise on quality, the M-SPEC series delivers the dependability and precision required for any serious AR-15 platform. The 8620 carrier is heat-treated, hard turned and ground for improved durability and performance MPI Carpenter 158 or 9310 bolt, shot-peened and hard turned/ground, ensuring high-quality, durable components for reliable performance NiB, nickel boron-coated, offering a smooth, self-lubricating surface for reliable operation and reduced friction The CP-R360 domed cam pin ensures smooth, reliable cycling with enhanced durability, improving firearm performance and longevity Shot-peening is conducted with S110-shot, established by Almen Gage A-2 strip .006 -.008, ensuring uniform surface treatment to enhance the material's durability and resistance to wear Lifetime warranty guarantees long term support and protection for your purchase, ensuring peace of mind and confidence in the product Made in the USA, this product reflects American craftsmanship and quality, ensuring top-tier performance and reliability