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Lightweight AR-15 Castle Nut and Endplate with Friction Fit Fortis created the two-piece K1 system to eliminate the risk of the castle nut backing out, while maintaining light weight. The...7 Options
Ratcheting AR-15 Endplate and Castle Nut The K2 castle nut and endplate from Fortis features a locking lever to ensure your buffer tube never backs out, without need for staking...7 Options
Carbon Fiber AR-15 Stock Kit Complete with Buffer Tube The Fortis Lever Action (LA) stock provides a sleek profile, a rattle-free fit, and a carbon-fiber cheek piece for a high-speed...3 Options3 Options3 Options
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