Angstadt Arms Barrel 9mm 6" Black 1/2x28 TPI Thread AR Rifles
$108.00 at OpticsPlanet · 3 stores
In stock Sale
Best price
$83.99at Brownells
In stock Sale checked Oct 1, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells Best price | $83.99Salechecked Oct 1, 2026 | In stock | Buy at Brownells | |
| OpticsPlanet | $94.76Salechecked Oct 1, 2026 | In stock | Buy at OpticsPlanet | |
| Ammunition Depot | $99.75checked Oct 1, 2026 | In stock | Buy at Ammunition Depot | |
| Battlehawk Armory | $73.73Salechecked Oct 1, 2026 | Check store | Buy at Battlehawk Armory | |
| Palmetto State Armory | $93.99checked Oct 1, 2026 | Check store | Buy at Palmetto State Armory |
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
Lowest in-stock price in the last 30 days: $83.99 at Brownells. Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Ammunition Depot | $99.75 | $99.75 | $99.75 |
| Battlehawk Armory | $73.73 | $73.73 | $73.73 |
| Brownells | $83.99 | $83.99 | $83.99 |
| OpticsPlanet | $94.76 | $94.76 | $94.76 |
| Palmetto State Armory | $93.99 | $93.99 | $93.99 |
Since Sep 27, 2026.
About this part
The AR-15 Modern Series 5.5 Barrel is a 9mm barrel from Ballistic Advantage. It's sold by 5 stores (3 in stock), from $73.73 to $99.75. The lowest in-stock price in the last 30 days was $83.99 at Brownells.
Fits and works with
- Caliber
- 9mm · Shop matching ammo
- Bolt
- 9mm · Bolt carrier groups
- Muzzle thread
- 1/2x28 · Muzzle devices
Specifications
- Manufacturer
- Ballistic Advantage
- Platform
- AR-9
- Caliber
- 9mm
- Thread pattern
- ½ x 28
From the manufacturer
This 9mm chambered 4.5 inch Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and 1/2-28 x .400 full profile threads. Designed to work with both Colt/RR and Glock style AR builds. Compatible with standard mil-spec uppers. There are also numerous dedicated 9mm upper options that work. Requires the use of a unique magwell conversion (Colt/Rock River style) with UZI mags or a dedicated 9mm lower with Glock mags. 9mm on an AR15 platform operates by blowback and does not need a gas block or gas tube. Threaded 1/2x28 or 1/2x36 to give you greater versatility when choosing a suppressor. Integrated feed ramp and barrel ex Mfg: Ballistic Advantage
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