XTS Castle Nut Black

Name: XTS Castle Nut Black
Brand: Xts
Availability: InStock

Xts · Buffer Tubes & Springs

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Best price

$4.99at OpticsPlanet

In stock Sale checked Nov 3, 2026

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Where to buy

Store	Price	Availability	Buy	Add to build
OpticsPlanet Best price	$4.99Salechecked Nov 3, 2026	In stock	Buy at OpticsPlanet
GunMag Warehouse	$4.99checked Nov 3, 2026	In stock	Buy at GunMag Warehouse

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

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Lowest in-stock price in the last 30 days: $4.99 at GunMag Warehouse. Dashed line = out of stock. Tracking since Oct 29, 2026.

Show the prices as a table

Store	Latest	Lowest	Highest
GunMag Warehouse	$4.99	$4.99	$4.99
OpticsPlanet	$4.99	$4.99	$4.99

Since Oct 29, 2026.

About this part

The XTS Castle Nut Black is a buffer part from Xts. It's sold by 2 stores, all at $4.99. The lowest in-stock price in the last 30 days was $4.99 at GunMag Warehouse.

Specifications

Manufacturer: Xts
Material: Steel

From the manufacturer

XTS Castle Nut Black. A simple press of the Vipper in combination with the steel Castle Nut forms a fully functional muzzle brake. Vippers have been used in military sniper rifles for decades. The combination of the muzzle brake and a properly fitted castle nut keeps the muzzle brake and barrel in place making it difficult to remove. XTS machined the castle nut from heat treated steel alloy and it is MIL-STD Manganese Plown. It can be re-installed in seconds using the provided heat wrenches. Specifications for XTS Castle Nut: Manufacturer: XTS Color: Black Features of XTS Viper Muzzle Brake for AR-15 Vipper Muzzle Brake Package Contents: XTS Castle Nut XTS CN: Castle Nut Black