AR-STONER AR-15 Barrel 9mm Luger 4.5" Medium Contour 1:10" Twist Nitride

Name: AR-STONER AR-15 Barrel 9mm Luger 4.5" Medium Contour 1:10" Twist Nitride
Brand: AR-STONER
Availability: InStock

AR-STONER · Barrels

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AR-STONER AR-15 Barrel 9mm Luger 4.5" Medium Contour 1:10" Twist Nitride

Best price

$43.99at MidwayUSA

In stock checked Nov 13, 2026

Buy at MidwayUSA

Fits and works with

Caliber: 9mm · Shop matching ammo
Bolt: 9mm · Bolt carrier groups
Barrel length: 4.5" · Handguards

Specifications

Manufacturer: AR-STONER
Platform: AR-9

Where to buy

Store	Price	Availability	Buy	Add to build
MidwayUSA	$43.99checked Nov 13, 2026	In stock	Buy at MidwayUSA

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: $43.99 at MidwayUSA. Dashed line = out of stock. Tracking since Nov 12, 2026.

Show the prices as a table

Store	Latest	Lowest	Highest
MidwayUSA	$43.99	$43.99	$43.99

Since Nov 12, 2026.

About this part

The AR-STONER AR-15 Barrel 9mm Luger 4.5" Medium Contour 1:10" Twist Nitride is a 4.5" 9mm barrel from AR-STONER. One store lists it, MidwayUSA at $43.99. The lowest in-stock price in the last 30 days was $43.99 at MidwayUSA.

From the manufacturer

The AR-STONER AR-15 9mm Barrel is the ideal balance of function, performance and affordability. Precisely milled from 4150 Chrome Moly Vanadium Steel, this barrel gives your 9mm Carbine a sleek look with the function to match. The 1 in 10" twist provides superb accuracy and different contour options makes these barrels a consistent shooter. Build an AR-15 pistol with the AR-STONER AR-15 9mm Barrel and shut out the competition. Note: Standard1/2"- 28 muzzle devices do not have clearance for 9mm rounds to pass. Prior to muzzle device installation ensure 9mm rounds pass freely through the muzzle device bore.