Fortis Manufacturing Inc.

The Fortis Standard Castle Nut is manufactured from a solid piece of billet aircraft grade aluminum that offers a significant weight reduction to your castle nut. If you're trying to save ounces,...

The Fortis low profile gas block is designed to work in conjunction with today's match grade barrels. Don't want to mar your barrel installing the gas block? Neither do we! So rock this gas block and...

Rifling in an AR barrel is one of the most important features for shooting accurately. Somehow this hasn't been the focus on shorter barrels for the pistol market-until now. Fortis is using a process...

The 7.62/.308 Fortis Hammer charging handle stays true to their brand. They engineer, design, & develop military grade accessories that look good and function great. Tested and evaluated by industry...

The Fortis Hammer charging handle stays true to their brand. They engineer, design, & develop military grade accessories that look good and function great. Tested and evaluated by industry...

The Fortis Hammer charging handle stays true to the brand. Fortis engineer, design, & develop military grade accessories that look good and functions great. Tested and evaluated by industry...

When designing their new 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 two...

When designing their new 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 two...

When designing the new 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...

When designing the new 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...

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 Fortis Billet Mag Catch & Button is a superior alternative to the ones found in a mil-spec lower parts kit. Easily installs in seconds and instantly upgrades your rifle. This upgrade is CNC...