ATI Outdoors Castle Nut for AR-15/AR-10 Rifles, Black

Name: ATI Outdoors Castle Nut for AR-15/AR-10 Rifles, Black
Brand: ATI
Availability: InStock

ATI · Buffer Tubes & Springs

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Best price

$6.30at Kentucky Gun Co

In stock checked Oct 23, 2026

Buy at Kentucky Gun Co

Compare 6 stores

Where to buy

Store	Price	Availability	Buy
Kentucky Gun Co Best price	$6.30checked Oct 23, 2026	In stock	Buy at Kentucky Gun Co
Ammunition Depot	$9.49checked Oct 24, 2026	In stock	Buy at Ammunition Depot
OpticsPlanet	$9.99Salechecked Oct 23, 2026	In stock	Buy at OpticsPlanet
Battlehawk Armory	$6.65Salechecked Oct 23, 2026	Check store	Buy at Battlehawk Armory
Palmetto State Armory	$8.29Salechecked Oct 24, 2026	Check store	Buy at Palmetto State Armory
GunMag Warehouse	$10.99checked Oct 8, 2026	Out of 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: $6.21 at Kentucky Gun Co. Dashed line = out of stock. Tracking since Sep 28, 2026.

Show the prices as a table

Store	Latest	Lowest	Highest
Ammunition Depot	$9.49	$9.49	$15.99
Battlehawk Armory	$6.65	$6.40	$6.65
GunMag Warehouse	—	$10.99	$10.99
Kentucky Gun Co	$6.30	$6.21	$6.30
OpticsPlanet	$9.99	$9.99	$9.99
Palmetto State Armory	$8.29	$8.29	$8.29

Since Sep 28, 2026.

About this part

The ATI Outdoors Castle Nut for AR-15/AR-10 Rifles, Black is an AR-10 buffer part from ATI. It's sold by 6 stores (3 in stock), from $6.30 to $10.99. The lowest in-stock price in the last 30 days was $6.21 at Kentucky Gun Co.