Proof Research: 338 ARC, Stainless Steel, AR Barrel, 5 Groove, 1 - 8 Twist, 16"
Proof Research
PROOF Research has designed its AR barrels to improve performance and reliability on the AR platform. PROOF Research's Caliber Matched Gas System (CAMGAS) results in a gas system tuned specifically to the cartridge and barrel length. 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 a 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 for. 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.
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Proof Research