Adams Arms Low Mass One-Piece Bolt Carrier Group Lifecoat Piston BCG
Our complete one piece Lifecoat Full Carrier Body Low Mass is designed for use with our proprietary piston system. Total BCG Weight: 9.4oz
MELONITE NITRIDE (ADAMS ARMS PROPRIETARY "LIFECOAT" FALLS UNDER THIS CATEGORY BUT IS MORE ADVANCED MULTI-STEP PROCESS USING PVD INSTEAD OF LIQUID NITRIDE)
This finishing process provides a surface hardening condition that protects against corrosion and wear better than hard chrome or nickel plating. While liquid nitriding is a surface modification technology, Physical Vapor Deposition (PVD) coating involves the deposition of thin (2-10 microns; 0.0001”–0.0004”) proprietary films (i.e. TiN, CrN, Ti(C,N)) on the surface of components.
VooDoo Innovations (VDI) has trademarked the term LifeCoat. The term is used to describe a multitude of coating processes that best fit the application of the specific AR15 part. Since each part serves a different purpose, it has different applicable needs for surface protection, lubricity, hardness and color. Some coatings are “Line of Sight” coatings and can only coat outside dimensions of a part. While other coatings are baths and therefore have the ability to coat blind holes as well as other internal cavities. All coating processes have an intended purpose. Some coating processes offer superior lubricity, but may not be hard enough to hold up over long periods of time on point-to-point contact surfaces. VDI has taken their years of experience in the world of Mechanics, Engineering and Firearms’ Technology to apply these processes to their best intended application. Having the ability to offer specific materials, machining techniques, coatings and apply them to the purpose of the part is what allows them to offer Life-Time Warranties on the parts produced. Many variables come into play when applying various coatings; from heat and surface preparation to friction on mating contact points. Below are the specific coatings for the Bolt Carrier Group (most often compared/stressed about in deciding between Nickel Boron and Melonite).
This bolt carrier group comes with all VDI LifeCoat parts: low mass piston carrier, firing pin, cam pin, 5.56 bolt, and cotter pin.