Fortis Manufacturing Standard Castle Nut Black

Name: Fortis Manufacturing Standard Castle Nut Black
Brand: Fortis Manufacturing
Availability: InStock

Fortis Manufacturing · Buffer Tubes & Springs

No ratings yet

Best price

$9.65at MidwayUSA

In stock Sale checked Oct 31, 2026

Buy at MidwayUSA

Compare 2 stores

Where to buy

Store	Price	Availability	Buy	Add to build
MidwayUSA Best price	$9.65Salechecked Oct 31, 2026	In stock	Buy at MidwayUSA
OpticsPlanet	$11.35Salechecked Oct 31, 2026	In stock	Buy at OpticsPlanet

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

Show

Lowest in-stock price in the last 30 days: $9.65 at MidwayUSA. Dashed line = out of stock. Tracking since Oct 27, 2026.

Show the prices as a table

Store	Latest	Lowest	Highest
MidwayUSA	$9.65	$9.65	$11.35
OpticsPlanet	$11.35	$11.35	$11.35

Since Oct 27, 2026.

About this part

The Fortis Manufacturing Standard Castle Nut Black is an AR-15 buffer part from Fortis Manufacturing. It's sold by 2 stores (2 in stock), from $9.65 to $11.35. The lowest in-stock price in the last 30 days was $9.65 at MidwayUSA.

Specifications

Manufacturer: Fortis Manufacturing
Platform: AR-15
Material: Aluminum

From the manufacturer

Fortis Manufacturing Standard Castle Nut Black. If you're trying to save ounces this is a great way but without sacrificing durability. The castle nut will fit onto mil-spec buffer tubes and quickly upgrade the form and function of ybuild. You will need a standard stock wrench to install Specifications for Fortis Manufacturing Standard Castle Nut: Manufacturer: Fortis Manufacturing Gun Model: AR-15 Condition: New Color: Black Fabric/Material: Aircraft Grade 7075-T6 Aluminum Quantity: 1 Features of Fortis Manufacturing Standard Castle Nut Material: Aircraft Grade 7075-T6 Aluminum Weight: 0.2 oz You will need a standard stock wrench to install Type III Hardcoat Anodize made in specialized factories Package Contents: Fortis Manufacturing Standard Castle Nut What firearm models does the manufacturer say Fortis Manufacturing Standard Castle Nut is compatible with? The manufacturer says that Fortis Manufacturing Standard Castle Nut is compatible with AR-15Fortis Manufacturing CN-Stand: Standard Castle Nut Black