Fortis K1 Enhanced End Plate Olive Drab Green
Fortis K1 Enhanced castle nut and end plate combo featuring a tapered design that seals itself without staking. Includes QD socket, anodized finish, weighs just 16.8 grams. Fits AR-15.
Fits: AR-15
Fortis K1 Enhanced End Plate System
Fortis Manufacturing has engineered a solution to one of the AR-15's most persistent problems: castle nuts that back out under recoil. The K1 Enhanced system eliminates this risk through precision engineering rather than traditional staking methods.
How It Works
The K1 system features a tapered castle nut that seals itself directly onto the end plate. This ultra-precision fit allows the nut to seat and lock in place through mechanical design alone—no staking required, no set screws needed, and no risk of failure.
Key Features
- Tapered design seals castle nut without staking
- QD socket for quick-detach sling attachment
- Anodized finish in Olive Drab Green for durability and corrosion resistance
- Lightweight at just 16.8 grams (0.59 oz)
- AR-15 compatible with standard buffer tube assemblies
- No ratcheting, no backing out—engineered for reliability
Why It Matters
A loose castle nut can compromise your rifle's stability and performance. The K1 Enhanced eliminates this concern through precision engineering, giving you confidence that your buttstock assembly will remain secure through thousands of rounds.
Features
- lightweight design at only .59 oz / 16.8 grams total
- castle nut and end plate are 7075 t6 aircraft grade aluminum
- quick detach socket - 360 rotational locking interface
- no set screws or ratcheting system
