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Proof Research
Overview
The Proof Research AR-15/308 AR Stainless Steel Barrel features a 16-inch length and is chambered for .223 Wylde, allowing for versatility in handling both .223 Remington and 5.56 NATO cartridges. With a 1:8 twist rate, this barrel provides excellent stabilization for a range of bullet weights, making it a solid choice for builders looking to optimize accuracy and performance. This barrel is commonly used in mid-length builds that prioritize maneuverability without sacrificing ballistic effectiveness.
AR-15/ 308 AR Stainless Steel Barrels - 223 Wylde 1-8 Twist 16" Stainless Barrel
The Proof Research AR-15/ 308 AR Stainless Steel Barrels - 223 Wylde 1-8 Twist 16" Stainless Barrel was out of stock everywhere we track for all of September 2026, and today none of the 2 retailers we track has it in stock right now. Listed prices start at $569 at Brownells for when it comes back.
Prices checked · refreshed daily across 37 retailers
We ranked every barrel by how often it shows up in real builds on GunPartPicker.
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