Fortis LE K1 Tapered Castle Nut & End Plate AR-15 Flat Dark Earth

When designing the Lightweight Enhanced (LE) Castle Nut & End Plate System, Fortis came up with two systems that virtually eliminates the risk of your castle nut ever backing out. With the two lockdown systems (K1 & K2), they engineered a solution to install the castle nut onto the end plate that is not only robust, but also stands true to the Fortis brand of innovation and ingenuity. The K1 system features a tapered castle nut that seals itself onto the end plate. This ultra precision snug fit allows the castle nut to seat and seal itself into place without the need of staking the end plate. No ratcheting, no set screws, no backing out and no failures. All of these features at only .59 oz / 16.8 grams! No torque wrench required, just tighten about 1/4 turn from hand tight. If using a torque wrench, be sure to only use 15-20 ft lbs - this is much less than your typical castle nut FeaturesLightweight design at only .59 oz / 16.8 grams totalCastle nut and end plate are 7075 T6 Aircraf...