AR-15/ 308 AR Stainless Steel Barrels - 300 AAC Blackout 1-8 Twist 16'''' Stainless Barrel
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Proof Research
Overview
The Proof Research 16-inch stainless steel barrel is designed for the 300 AAC Blackout caliber, featuring a carbine-length gas system that ensures reliable cycling with various loads. Its 1:8 twist rate is well-suited for stabilizing a wide range of bullet weights, allowing builders to maximize the versatility of their rifle. This barrel is commonly found in builds focused on tactical applications, where compactness and performance are essential.
Specifications
AR-15/ 308 AR Stainless Steel Barrels - 300 AAC Blackout 1-8 Twist 16'''' Stainless Barrel
Price and stock
The Proof Research AR-15/ 308 AR Stainless Steel Barrels - 300 AAC Blackout 1-8 Twist 16'''' Stainless Barrel was out of stock everywhere we track for all of August 2026, and today none of the 3 retailers we track has it in stock right now. Listed prices start at $450 at BattleHawk Armory for when it comes back.
Prices checked · refreshed daily across 35 retailers
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