Fortis Light Weight K1 Castle Nut and End Plate Black, Gray - LEBLKK1GRY

Fortis Manufacturing Fortis Light Weight K1 Castle Nut and End Plate Black, Gray - LEBLKK1GRY
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Fortis Manufacturing

Overview

The Fortis Light Weight K1 Castle Nut and End Plate is designed from 7075-T6 aluminum and features a hardcoat anodized finish for added durability. This enhanced type castle nut and end plate set provides a secure attachment point for the buffer tube, ensuring stability during operation and minimizing slippage. You'll often find this product in builds utilizing a mid-length gas system chambered in 5.56 NATO, making it a practical choice for those configurations.

Specifications

MPNLEBLKK1GRY
TypeEnhanced
ColorBlack
FinishHardcoat Anodized
Material7075-T6 Aluminum

Available Merchants(6)

Prices checked

Stock Alert

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BattleHawk Armory logo
BattleHawk Armory
Shipping varies
Shipping Speed
Out of Stock
$37.95
Palmetto State Armory logo
Palmetto State Armory
$9.99 shipping (free over $99)
Shipping Speed
Out of Stock
$37.99
Ammunition Depot logo
Ammunition Depot
~$28.90 est. shipping
Shipping Speed
Out of Stock
$41.49
Optics Planet logo
Optics Planet
Free shipping over $49
Shipping Speed
Out of Stock
$42.19
GritR Sports logo
GritR Sports
Shipping varies
Shipping Speed
Out of Stock
$42.70
KY Gun Company logo
KY Gun Company
Flat rate shipping
Shipping Speed
Out of Stock
$44.60

Build history on GunPartPicker

Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, but today none of the 6 retailers we track has it in stock right now. Prices barely moved in October 2026, holding around $37.95, with no real sale all month. Listed prices start at $37.95 at BattleHawk Armory for when it comes back.

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Builds Featuring This Part

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Builds in the community that include the Fortis Light Weight K1 Castle Nut and End Plate Black, Gray - LEBLKK1GRY

BuildPartsTotal
PDW 16" 5.56 build
PDW 16" 5.56
18$1213.90
DMR 20" 5.56 build
DMR 20" 5.56
21$2564.20
SBR 8" 5.56 build
SBR 8" 5.56
24$3791.02
14.5" build
14.5"
35$3398.44
16" radian weapons build build
16" radian weapons build
29$4975.47
fn america 20" .350 legend build
fn america 20" .350 legend
18$2233.40
12.5" aero precision clone build
12.5" aero precision clone
16$1249.04
16.1" aero precision SBR build
16.1" aero precision SBR
20$1489.12
for a duty rifle 16" build
for a duty rifle 16"
27$2252.38
For 2 gun 14.5" build
For 2 gun 14.5"
22$1407.41

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