Lantac USA M Spec Bolt Carrier Group 556/223 - 01-MSPEC-556-NIT-BCG

Lantac M-Spec 5.56/.223 Bolt Carrier Group

The Lantac M-Spec BCG with M16 full auto profile; Carpenter 158 steel, 8620 steel & 17-4 stainless steel materials; QPQ nitride finish; and 12 oz weight.

Made in the USA., the M-SPEC® 5.56/.223 BCG is precision machined to Mil-Spec dimensions and tolerances, and features an 8620 steel, full auto style carrier with increased mass. This carrier is case hardened and hard turned/ground so that its internal dimensions are exact to Military specifications; it is then QPQ nitrided rather than Type M Phosphated to ensure better corrosion resistance, durability and performance.

As per the military spec, the bolt is machined from Carpenter 158 or 9310 steel, shot peened and hard turned.

Each BCG is further fitted with a Lantac CP-R360 domed head cam pin precision machined from 17-4PH stainless steel, hand polished and hardened to H900 condition to further reduce friction and wear within the upper receiver.

Bear in mind that the M-SPEC® line of products are ideal for budget builds where quality and reliability are still paramount; and that this Lantac 5.56/.223, which is also offered in 7.62/.308 Caliber, is backed by a Lifetime Warranty.