Home / Rifle Parts / Fortis Manufacturing / Fortis Manufacturing K1 Enhanced OD Green End Plate Castle Nut Combo
Fortis Manufacturing K1 Enhanced OD Green End Plate Castle Nut Combo
Lowest Price
MSRP
$39.95
Savings
18% off
Verified In Stock at
9 Stores
Updated
Aug 26, 2026
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Castle nut and end plate are 7075 T6 Aircraft Grade Aluminum
Lightweight design at only .59 oz / 16.8 grams total
No set screws or ratcheting system
Quick Detach Socket - 360 rotational locking interface
Specifications
Description
Fortis Manufacturing K1 Enhanced Features 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 lockdown systems (K1 & K2) they ve engineered a solution to install the castle nut onto the end plate that is not only robust but also stands true to the brand of innovation and ingenuity. The K1 system utilizes a locking lever design that seats itself through a designed slot on the bottom of the end plate and into corresponding cutouts on the castle nut. This ultra precision fit allows the castle nut to seat itself into place without the need of staking the end plate. No set screws no backing out and no failures. All of these features at only .59 oz / 16.8 grams! Fortis Manufacturing K1 Enhanced Specifications Manufacturer: Fortis Manufacturing Inc. Model: K1 Type: End Plate Color: OD Green Subcategory: Long Gun Parts Finish: Anodized







