Proof Research PR15 .223 Wylde AR-15 Barrel - Mid Length - 16" - Stainless Steel

The Proof Research PR15 in .223 Wylde with a 16-inch stainless steel barrel and mid-length gas system gives builders a genuine all-steel option with a softer cycling impulse than a carbine-length system.

Features:

• 16" barrel chambered in .223 Wylde, 1/7 twist rate
• cut-rifled 416R stainless steel for the complete barrel assembly
• Mid Length gas system length, dimpled for a set-screw gas block for simple alignment
• Standard 0.750" gas block journal diameter for compatibility with most aftermarket gas blocks
• Cut rifled for genuine accuracy and a long service life
• Threaded muzzle for mounting a suppressor or muzzle device

The 416R stainless steel construction gives this barrel excellent accuracy potential and corrosion resistance, a genuine choice for builders who prefer an all-steel barrel over a carbon-fiber-wrapped design.

The .223 Wylde chamber safely runs both .223 Remington and 5.56 NATO ammunition, giving owners genuine flexibility in ammunition selection without needing to track two separate chamberings.

Proof Research has manufactured carbon-fiber-wrapped barrels since 2010, and its PR15 and PR10 lines reflect that same barrel-making expertise applied to the AR-15 and AR-10 platforms specifically for builders and gunsmiths. That reliability and accuracy standard shows up on the range, build after build.