Developed by the "Father of KeyMod™", Eric Kincel, the BCM KeyMod™ Rail(KMR) delivers a robust, ultra-light modular handguard for the AR platform, second to none on the market today.
Manufactured from an exclusive blended aluminum and magnesium alloy, the BCM KMR weighs 30-40% less than pure aluminum with the same strength properties. The BCM KMR also features a proprietary patent pending mounting, indexing and lock up system that mitigates 12:00 rail movement due to heat generated from the barrel nut.
The KMR's propriety finish is a plasma deposition process originally developed for the Aerospace industry. The finish creates a stabilized, ceramic-like surface coating with superior wear resistance when compared to anodized or even hard chrome. The stabilized nature of the coating means it has a higher corrosion resistance as well, due to the lack of 'pores' in the surface.
The KeyMod™ interface system was originally developed by Eric Kincel (now the Director of BCMs' product development team) to work in parallel with the current Picatinny rail handguard system. In many applications, the KMR will offer modularity and customization exceeding the current 1913 rail systems with baked-in rails.
The BCM KMR also allows for a greater range of customization, offering an additional 4 offset mounting points between traditional 3,6,9, and 12:00 positions.
At its heart, the KeyMod™ system creates the potential for universal modularity between various manufacturers of accessories and accessory rails. As more options become available, new KeyMod™ accessories will attach directly to the KeyMod™ slots rather than via Picatinny rail segments, creating a lighter, cleaner, and less bulky weapon system.