Faxon Firearms .458 Socom 4150 Nitride Gunner Barrel - 16"
$201.00 at MidwayUSA · 8 stores
In stock
Best price
$194.00at OpticsPlanet
In stock Sale checked Nov 13, 2026
Fits and works with
- Caliber
- .458 SOCOM · Shop matching ammo
- Bolt
- .458 SOCOM / .450 Bushmaster · Bolt carrier groups
- Gas system
- Pistol · Handguards
- Barrel length
- 10.5" · Handguards
Specifications
- Manufacturer
- Faxon Firearms
- Color
- Black
- Platform
- AR-15
- Caliber
- .458 SOCOM
- Gas system
- Pistol
- Barrel length
- 10.5"
- Twist rate
- 1:14
- Weight
- 24 oz
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet Best price | $194.00Salechecked Nov 13, 2026 | In stock | Buy at OpticsPlanet | |
| MidwayUSA | $194.00checked Nov 13, 2026 | In stock | Buy at MidwayUSA | |
| Brownells 17.76% off · ends Nov 15 · exclusions apply | $243.80checked Nov 13, 2026 | In stock | Buy at Brownells | |
| Ammunition Depot | $243.80checked Nov 13, 2026 | In stock | Buy at Ammunition Depot | |
| AR15Discounts 5% off | $194.00checked Nov 13, 2026 | Check store | Buy at AR15Discounts | |
| Dirty Bird | $194.00checked Nov 13, 2026 | Check store | Buy at Dirty Bird | |
| Battlehawk Armory | $208.62Salechecked Nov 13, 2026 | Check store | Buy at Battlehawk Armory | |
| Palmetto State Armory | $229.99checked Oct 14, 2026 | Check store | Buy at Palmetto State Armory | |
| Faxon Firearms | $255.00checked Nov 13, 2026 | Check store | Buy at Faxon Firearms |
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: $184.34 at MidwayUSA. Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| AR15Discounts | $194.00 | $194.00 | $194.00 |
| Ammunition Depot | $243.80 | $243.80 | $243.80 |
| Battlehawk Armory | $208.62 | $208.62 | $208.62 |
| Brownells | $243.80 | $243.80 | $243.80 |
| Dirty Bird | $194.00 | $194.00 | $194.00 |
| Faxon Firearms | $255.00 | $255.00 | $255.00 |
| MidwayUSA | $194.00 | $184.34 | $194.00 |
| OpticsPlanet | $194.00 | $194.00 | $194.00 |
| Palmetto State Armory | — | $229.99 | $229.99 |
Since Sep 27, 2026.
About this part
The Gunner Big Bore Barrel .458 Socom 10.5 Pistol Gas 1-14 is a 10.5" .458 SOCOM barrel from Faxon Firearms with a pistol gas system. It's sold by 9 stores (4 in stock), from $194.00 to $255.00. The lowest in-stock price in the last 30 days was $184.34 at MidwayUSA.
From the manufacturer
Built for a Big-Bore AR-15
If you're building a real thumper of an AR-15, then you can't go wrong by choosing the Faxon Firearms Gunner Big Bore Barrel, which is purpose-built to handle all the stresses that come with shooting large-caliber cartridges from your AR-style rifle.
This particular model of the Faxon Firearms Gunner Big Bore Barrel is chambered for the popular .458 SOCOM and is machined from durable 4150 CMV steel. Each barrel is button-rifled to provide the best possible accuracy.
- Barrel length: 10.5 inches
- Pistol-length gas system
- Salt-bath Nitride treated
- 1:14-inch rate of twist
In addition to its durable construction, each Faxon Firearms Gunner Big Bore Barrel is finished with a black-nitride treatment that wards off corrosion and provides enhanced wear resistance. The barrel also features a threaded muzzle and 11-degree target crown.
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