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Fortis Manufacturing LE Lightweight Enhanced Castle Nut/End Plate System Omega Clip K2 Lockdown Black

Fortis Manufacturing LE Lightweight Enhanced Castle Nut/End Plate System Omega Clip K2 Lockdown Black

Fortis Manufacturing · Buffer Tubes & Springs

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Best price

$43.99at OpticsPlanet

In stock Sale checked Nov 10, 2026

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Where to buy

StorePriceAvailabilityBuyAdd to build
OpticsPlanet Best price $43.99Salechecked Nov 10, 2026 In stock Buy at OpticsPlanet
AR15Discounts $54.10checked Nov 10, 2026 Check store Buy at AR15Discounts
Dirty Bird $54.10checked Nov 10, 2026 Check store Buy at Dirty Bird
Kentucky Gun Co $54.10checked Nov 10, 2026 Out of stock Buy at Kentucky Gun Co

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

Lowest in-stock price in the last 30 days: $43.99 at OpticsPlanet. Dashed line = out of stock. Tracking since Oct 27, 2026.

Show the prices as a table
StoreLatestLowestHighest
AR15Discounts$54.10$54.10$54.10
Dirty Bird$54.10$54.10$54.10
Kentucky Gun Co$54.10$54.10$54.10
OpticsPlanet$43.99$43.99$48.39

Since Oct 27, 2026.

About this part

The Fortis Manufacturing LE Lightweight Enhanced Castle Nut/End Plate System Omega Clip K2 Lockdown Black is a buffer part from Fortis Manufacturing. It's sold by 4 stores (1 in stock), from $43.99 to $54.10. The lowest in-stock price in the last 30 days was $43.99 at OpticsPlanet.

Specifications

Manufacturer
Fortis Manufacturing

From the manufacturer

Fortis Manufacturing LE Lightweight Enhanced Castle Nut/End Plate System Omega Clip K2 Lockdown Black. With our two lockdown systems (K1 & 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 our brand of innovation and ingenuity. The K2 system utilizes a c-clip 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 ratcheting no set screws no backing out and no failures. All of these features at only .55 oz / 15.6 grams Specifications for Fortis Manufacturing AR-15 LE Omega Clip Castle Nut/End Plate K2 System: Manufacturer: Fortis Manufacturing Gun Model: AR-15 Condition: New Features of Fortis Manufacturing AR-15 LE Omega Clip Castle Nut/End Plate K2 System: Lightweight design at only .55 oz / 15.6 grams total Castle nut is offered in either 7075 aluminum or 4140 steel Quick Detach Socket - 360 rotational locking interface No set screws or ratcheting system Package Contents: Fortis Manufacturing AR-15 LE Omega Clip Castle Nut/End Plate K2 System What firearm models does the manufacturer say Fortis Manufacturing AR-15 LE Omega Clip Castle Nut/End Plate K2 System is compatible with? The manufacturer suggests that Fortis Manufacturing AR-15 LE Omega Clip Castle Nut/End Plate K2 System is compatible with AR-15Fortis Manufacturing LE-BLK-K2-4140BLK: LE Lightweight Enhanced Castle Nut/End Plate System Omega Clip K2 Lockdown Black

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$43.99 at OpticsPlanet
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