The BCM Magazine Catch Assembly (plate and the post) is precision machined Mil-Spec AISI8620 per the USGI TDP for the M16/M4 family of weapons.Has a phosphate finish for corrosion resistance. The Selector and Bolt Catch are machined to the Mil-Spec, then goes through a 3 step heat treat and case hardening process for optimal grain structure and wear resistance.
The Safety Selector is center-less ground.(not to be confused with MIM parts that are very common in the commercial market) The BCM Bolt Catch and Safety Selector are a Mil-Spec AISI8620 investment casting per the USGI TDP for the M16/M4 family of weapons.The processes and tolerances are matched in the BCM PNT Trigger Assembly to create a system better than the sum of its parts.All hammer engagement surfaces are also ground for a super clean reset. The BCM Disconnector is stamped from a 1070 material and fine blanked for cleaner edges, double disc ground to a precise size.They are centerless ground to a fine finish and superior tolerances to ensure compatibility with all MIL-SPEC lower receivers built per the USGI TDP. This assembly includes BCM’s impact-resistant trigger and hammer pins.This is done on both the BCM PNT Trigger and Hammer in order to provide the maximum benefit allowed by the nickel coating, by augmenting the low friction and corrosion resistance. Teflon: Teflon particles are embedded in the nickel, further reducing the friction of the interface and ensuring a long-lasting coating.Nickel also provides a long-lasting finish that will not corrode, rust, or discolor due to oxidation. Nickel: An electroless nickel finish is applied for a smoother trigger pull with less grit and reduced felt creep.Polished: The sear engagement surfaces are ground, but then hand polished for an increased smoothness up to 300% beyond the Mil-Spec.After that, the BCM PNT Trigger and PNT Hammer then go through a 3 step heat treat and case hardening process for optimal grain structure alignment, yielding a stronger and more wear resistance product.156/157 holes are honed to assist in perfect alignment and a smooth trigger pull. (not to be confused with MIM parts that are very common in the commercial market). The BCM PNT Trigger and PNT Hammer are a precision machined Mil-Spec AISI8620 investment casting per the USGI TDP (Mil-Spec) for the M16/M4 family of weapons.BCM quality, modern manufacturing processes, and aerospace coatings are combined to ensure parts last a lifetime while performing far beyond requirements established nearly six decades ago.Please look at the information below.īCM PNT Trigger Assembly (Polished Nickel Teflon): In a commercial market flooded with imported and low-quality Mil-Spec imitations, you can trust that BCM® parts are made in the USA and to the highest standards.
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