Proof Research PR10 Stainless Steel 18in 308 Win Rifle Length Rifle Barrel 30cal 0.75GB 10 Twist 5/8 x 24
$584.10 at MidwayUSA · 4 stores
In stock Sale
Best price
$597.55at Brownells
Out of stock checked Oct 22, 2026
In stock now instead
- Proof Research PR10 Stainless Steel 18in 308 Win Rifle Length R… $584.10at MidwayUSA
- Steel AR .308 16 Barrel Mid-Length 5/8-24 $569.00at Brownells
- LMT MWS 7.62x51 NATO 13.5" Carbine Length Barrel Black $646.20at Brownells
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Brownells Best price | $597.55checked Oct 22, 2026 | Out of stock | Buy at Brownells | |
| Rainier Arms | Check priceprice on the store's site | Check store | Buy at Rainier Arms |
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.
Steel AR .308 16 Barrel Mid-Length 5/8-24
$569.00 at Brownells
In stock
LMT MWS 7.62x51 NATO 13.5" Carbine Length Barrel Black
$646.20 at Brownells · 3 stores
In stock
LMT MWS 7.62x51 NATO 16" Carbine Length Barrel Black
$646.20 at Brownells · 3 stores
In stock
Rainier Arms Ultramatch MOD2 .308 Barrel 16in Polished 1-10 Twist 5/8x24 Silver Medium
$430.00 at OpticsPlanet
In stock Sale
Rainier Arms Ultramatch MOD2 .308 Barrel 18in Polish 1-10 Twist 5/8x24 Silver Medium
$430.00 at OpticsPlanet
In stock Sale
Price history
Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Brownells | $597.55 | $597.55 | $597.55 |
Since Sep 27, 2026.
About this part
The BSF Barrels .308 Rifle Gas 1/10 Twist - 20" Black/Gray Fluted is a 2E+1" .308 / 7.62x51 barrel from BSF Barrels with a rifle gas system. One store lists it, Brownells at $597.55.
Fits and works with
- Caliber
- .308 / 7.62x51 · Shop matching ammo
- Bolt
- AR-10 (.308 / 6.5 CM) · Bolt carrier groups
- Gas system
- Rifle · Handguards
- Barrel length
- 2E+1" · Handguards
Specifications
- Manufacturer
- BSF Barrels
- Color
- Black
- Platform
- AR-10
- Caliber
- .308 / 7.62
- Gas system
- Rifle
- Barrel length
- 20"
- Finish
- Black/Gray
From the manufacturer
After turning down the barrel, we jacket a 416R Stainless steel match barrel in a roll-wrapped carbon fiber sleeve and load it under tension. We use this jacketing method rather than wrapping the barrel in carbon fiber because this method of wrapping has been proven to trap heat and cause delamination. The carbon fiber we use is specially designed to move at the same expansion rate as 416R stainless steel. We drill holes into the carbon fiber allowing air to move around the barrel and vent heat quicker without any delamination issues. Using the Carbon Fiber this way keeps the rifling straighter the warmer the barrel gets because it's under tension. This allows us to maintain superior stiffness and strength while keeping the barrel extremely lightweight.
Specs:
5R Button Rifling
Thread: 5/8" 24
.875 OD
Chambered in .308
20" Rifle Gas
Weight 31.10 oz
Twist Rate 1:10
PATENT PENDING
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