Fortis K1 Lightweight Enhanced AR-15 End Plate — Gray

Description

The Fortis K1 Lightweight Enhanced (LE) castle nut and end plate system is designed for AR-15 builders who want a minimal-weight, secure buffer-tube interface. The K1 system uses a precision tapered castle nut that seats and seals into the matching end plate, reducing the need for staking or additional fasteners. Engineered to minimize weight while providing a reliable lockdown method, the K1 packs the system into a compact assembly weighing only 0.59 oz (16.8 g).

Key Specifications

• The system weight is 0.59 oz / 16.8 g.
• Color options are Black, Gray.
• The surface finish is Anodized.
• The model designation is Lightweight Enhanced.
• The product type is a Castle Nut / End Plate System.
• The K1 design features a tapered castle nut that seals onto the end plate.
• Installation requires no staking, set screws, or ratcheting for the sealed fit.
• The lockdown variant for this item is K1.
• The intended platform is AR-15.

Compact, lightweight, and engineered for reliable seating, the Fortis K1 LE system provides a streamlined solution for securing the buffer tube interface on AR-15 builds. Its precision fit reduces ancillary hardware and keeps weight to a minimum while maintaining a dependable mechanical lock-up for modern rifle assemblies.