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The FW II Keymod Rail is designed to punch far above its weight. The triangular profile offers the best possible handling ergonomics while still maximizing weight savings. Unlike many other ultralight rail systems on the market, the oversize cutouts and KeyMod mounting system allows for a wider cross section profile, thus ensuring a more positive grip when firing. With a solid lower half and heat-dissipating CNC cutouts on the top, you can rest assured the FW Rail can handle anything you throw at it.
This rail features a non-indexing barrel nut and clamping system (FREELOK) that utilizes free floating tabs to secure the rail to the receiver. FREELOK provides both frictional and mechanical locking forces to create a rock-solid bond between the rail and barrel nut.
For your safety, Trinity Force recommends this part be installed by a competent, qualified gunsmith/installer with an understanding of the weapon platform that the part is being installed on. Always make sure the firearm is unloaded and pointed in a safe direction when working.
FREELOK Clamping System US Patent Number 9,389,043 B1