Home / Gun Parts / Fortis Manufacturing / Fortis Manufacturing LE Lightweight Enhanced AR15 End Plate System K1 Tapered Grey Castle Nut
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Fortis Manufacturing LE Lightweight Enhanced AR15 End Plate System K1 Tapered Grey Castle Nut

Fortis Manufacturing LE Lightweight Enhanced AR15 End Plate System K1 Tapered Grey Castle Nut

Lowest Price
$36.73
MSRP
$39.49
Savings
7% off
In Stock at
3 Stores
Updated
Jun 24, 2026
Castle nut and end plate are 7075 T6 Aircraft Grade Aluminum
Lightweight design at only .55 oz / 16.8 grams total
Made in the USA
No set screws or ratcheting system
Quick Detach Socket - 360º rotational locking interface

Specifications

MPN
LE-BLK-K1-GRY
UPC
810103343177

Description

Fortis Manufacturing LE Lightweight Enhanced AR15 End Plate System K1 Tapered Grey Castle Nut. With two lockdown systems (K1 and K2) we've engineered a solution to install the castle nut onto the end plate that is not only robust but also stands true to brand of innovation and ingenuity. 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 end plate. No ratcheting no set screws no backing out and no failures. All of these features at only .59 oz / 16.8 grams No torque wrench required just tighten about 1/4 turn from hand tight. If using a torque wrench be sure to only use 15-20 ft lbs - this is much less than ytypical castle nut Specifications for Fortis Manufacturing AR-15 LE Tapered Castle Nut/End Plate K1 System: Manufacturer: Fortis Manufacturing Finish: Milspec Anodized Fabric/Material: 7075-T6 Aircraft Grade Aluminum Hand: Ambidextrous Gun Make: AR Platform Gun Model: AR-15 Weight: 0.55 oz Quantity: 1 Condition: New Features of Fortis Manufacturing AR-15 LE Tapered Castle Nut/End Plate K1 System Lightweight design at only .59 oz / 16.8 grams total Quick Detach Socket - 360 degree rotational locking interface No set screws or ratcheting system Package Contents: Fortis Manufacturing AR-15 LE Tapered Castle Nut/End Plate K1 System What firearm models does the manufacturer say Fortis Manufacturing AR-15 LE Tapered Castle Nut/End Plate K1 System is compatible with? The manufacturer says that Fortis Manufacturing AR-15 LE Tapered Castle Nut/End Plate K1 System is compatible with AR-15Fortis Manufacturing LE-BLK-K1-GRY: LE Lightweight Enhanced AR15 End Plate System K1 Tapered Grey Castle Nut
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