Parts by category

Proof Research AR Steel .22 ARC Threaded Rifle Barrel 14.5 inch Intermediate 1-7 Twist 5/8-24 Stainless Steel

Proof Research AR Steel .22 ARC Threaded Rifle Barrel 14.5 inch Intermediate 1-7 Twist 5/8-24 Stainless Steel

Proof Research · Barrels

No ratings yet

Best price

$649.00at OpticsPlanet

Out of stock Sale checked Oct 21, 2026

Buy at OpticsPlanet

Where to buy

StorePriceAvailabilityBuyAdd to build
OpticsPlanet $649.00Salechecked Oct 21, 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.

More Proof Research parts

Price history

Dashed line = out of stock. Tracking since Oct 17, 2026.

Show the prices as a table
StoreLatestLowestHighest
OpticsPlanet$649.00$649.00$649.00

Since Oct 17, 2026.

About this part

The Proof Research AR Steel .22 ARC Threaded Rifle Barrel 14.5 inch Intermediate 1-7 Twist 5/8-24 Stainless Steel is a 14.5" 6.5 Creedmoor barrel from Proof Research with an intermediate gas system. One store lists it, OpticsPlanet at $649.00.

Fits and works with

Caliber
6.5 Creedmoor · Shop matching ammo
Bolt
AR-10 (.308 / 6.5 CM) · Bolt carrier groups
Gas system
Intermediate · Handguards
Muzzle thread
5/8x24 · Muzzle devices
Barrel length
14.5" · Handguards

Specifications

Manufacturer
Proof Research
Platform
AR-10
Caliber
6.5 Creedmoor
Gas system
Intermediate
Barrel length
14.5"
Thread pattern
5/8 x 24

From the manufacturer

Proof Research AR Steel .22 ARC Threaded Rifle Barrel 14.5 inch Intermediate 1-7 Twist 5/8-24 Stainless Steel. The Caliber Matched Gas System (CAMGAS) results in a gas system that is tuned specifically for the cartridge and length of the barrel. The AR-15 Platform was originally designed around the 223REM and 5.56NATO cartridges and the AR-10 was designed around the 308 Win/7.62NATO round. With higher performance cartridge such as the 6.5 Creedmoor the bore pressure remains higher further down the barrel. By moving the port location Proof Research ensures that the gas system pressure is the same as what the AR platforms were originally designed around. The result is a recoil impulse that is noticeably softer less fouling in the receiver increased reliability of extraction and less wear and tear on brass. This helps keep you on target and shooting while taking advantage of the latest high performance cartridges. Specifications for Proof Research AR Steel .22 ARC Threaded Rifle Barrel: Manufacturer: Proof Research Color: Stainless Steel Caliber: .22 ARC (Advanced Rifle Cartridge) Gas Block Journal Size-Diameter: .750 in Firearms Threads Per Inch: 5/8x24 Barrel Twist Rate: 1-7 Barrel Material: Steel Flutes: No Gun Make: AR Platform Gun Model: AR-15 Gun Type: Rifle Weight: 2.15 lb Gas Block Journal Size-Length: 1 in Application: Shooting Features of Proof Research AR Steel .22 ARC Threaded Rifle Barrel Lightweight - Up to 64percent lighter than traditional steel barrels of similar contour Extreme Temperature Resistance - Improved heat dissipation for cooler and longer lasting barrels Unprecedented Durability - Wrapped with high-strength aerospace-grade carbon fiber impregnated with a proprietary matrix resin Long-Lasting - Excellent erosion wear characteristics and corrosion resistance Extreme Pressure Resistance - An optimum combination of high tensile strength along with requisite toughness to withstand extreme chamber pressures encountered during firing Package Contents: Proof Research AR Steel .22 ARC Threaded Rifle Barrel What firearm models does the manufacturer say Proof Research AR Steel .22 ARC Threaded Rifle Barrel is compatible with? The manufacturer suggests that Proof Research AR Steel .22 ARC Threaded Rifle Barrel is compatible with AR-15Proof Research 143452: AR Steel .22 ARC Threaded Rifle Barrel 14.5 inch Intermediate 1-7 Twist 5/8-24 Stainless Steel 143452

Rating

No ratings yet

Log in to rate this part.

Comments

Please log in to read and leave comments.

$649.00 at OpticsPlanet
Buy