PW9 AR Pistol Barrel 9mm 1-10 Twist 1/2-28 Thread 4.5in Black 4.5in
$70.49 at OpticsPlanet
In stock Sale
Best price
$72.50at OpticsPlanet
Out of stock Sale checked Oct 22, 2026
In stock now instead
- PW9 AR Pistol Barrel 9mm 1-10 Twist 1/2-28 Thread 4.5in Black 4… $70.49at OpticsPlanet
- Diamondback Firearms OEM Replacement AR Barrel 10in 9mm Luger 1… $66.00at Kentucky Gun Co
- Dark Storm Industries DSI 9mm Threaded Barrel 12.5in SOCOM 1-10… $62.49at OpticsPlanet
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet | $72.50Salechecked Oct 22, 2026 | Out of 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.
Similar barrels in stock
This part is out of stock at every store we track. These similar barrels are in stock, with today's prices.
Diamondback Firearms OEM Replacement AR Barrel 10in 9mm Luger 1-9.84in Twist Black Nitride 4150 Chrome Moly Vanadium Steel
$66.00 at Kentucky Gun Co · 5 stores
In stock
Dark Storm Industries DSI 9mm Threaded Barrel 12.5in SOCOM 1-10 Twist 1/2x36 TPI Nitride Black DSI-BRL-9MMSC-12N10T-NT
$62.49 at OpticsPlanet
In stock Sale
AR-15 Modern Series 5.5 Barrel
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In stock Sale
Lead & Steel AR-9 9mm Threaded AR Barrel 5.5in Straight Blowback 1-10 Twist 1/2x36 Nitride Black
$85.99 at OpticsPlanet · 2 stores
In stock Sale
Dark Storm Industries AR-15 9MM HBAR Threaded Pistol Barrel 7.5in 1-10 Twist Black DSI-BRL-9MMHB-07N10T-NT
$53.95 at OpticsPlanet
In stock Sale
Price history
Dashed line = out of stock. Tracking since Oct 16, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| OpticsPlanet | $72.50 | $72.50 | $72.50 |
Since Oct 16, 2026.
About this part
The AT3 Tactical 9mm Straight Profile 4.5 Inch AR-15 Barrel Black is a 4.5" 9mm barrel from At3 Tactical. One store lists it, OpticsPlanet at $72.50.
Fits and works with
- Caliber
- 9mm · Shop matching ammo
- Bolt
- 9mm · Bolt carrier groups
- Barrel length
- 4.5" · Handguards
Specifications
- Manufacturer
- At3 Tactical
- Color
- Black
- Platform
- AR-9
- Caliber
- 9mm
- Barrel length
- 4.5"
From the manufacturer
AT3 Tactical 9mm Straight Profile 4.5 Inch AR-15 Barrel Black. barrel from AT3. Crafted from premium 4150 CrMoV steel per MIL-B-11595E specs and protected by a rugged black nitride finish. The straight profile adds a balanced weight while maintaining accuracy with 9mm ammunition. At just 11? long with 1/228 muzzle threads its an ultra-compact option for dedicated 9mm AR uppers or PDW-style pistol builds. Specifications for AT3 Tactical 9mm Straight Profile AR-15 Barrel: Manufacturer: AT3 Tactical Color: Black Caliber: 9mm Luger Barrel Profile: Straight Gun Make: AR Platform Gun Model: AR-15 Package Contents: AT3 Tactical 9mm Straight Profile AR-15 Barrel What firearm models does the manufacturer say AT3 Tactical 9mm Straight Profile AR-15 Barrel is compatible with? The manufacturer says that AT3 Tactical 9mm Straight Profile AR-15 Barrel is compatible with AR-15AT3 Tactical AT3-9MM-4.5-28: 9mm Straight Profile 4.5 Inch AR-15 Barrel Black
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