This Proof Research AR-15 barrel (MPN 143384) is a 16-inch stainless steel barrel chambered in .223 Wylde with Proof’s Caliber Matched Gas System (CAMGAS).

Key Specifications

• Chambered in .223 Wylde
• 16-inch barrel length
• Threaded 5/8×24 at the muzzle
• Stainless steel construction
• Proof’s Caliber Matched Gas System (CAMGAS) tunes gas port location to the .223 Wylde/5.56 cartridge
• Designed to reduce recoil impulse and receiver fouling versus a standard-port gas system
• Shipping weight listed at 3.101 lb

Frequently Asked Questions

What is CAMGAS?
Proof’s Caliber Matched Gas System, which tunes the gas port location so pressure matches what the AR-15 platform was originally designed around.

What caliber is this barrel for?
.223 Wylde, which also runs 5.56 NATO and .223 Remington ammunition.

Is the muzzle threaded?
Yes, 5/8×24.

Buy the Proof Research AR-15 Barrel

Get CAMGAS-tuned reliability in a 16-inch stainless barrel from Proof Research. Order from a Lubbock, TX gun shop in our rifle barrel selection.