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Stag Arms
Overview
The Stag Arms Stag 15 .300 Blackout 16 in Upper is a complete upper receiver designed specifically for the AR-15 platform, featuring a medium contour barrel with a length of 15.0 inches. Chambered in .300 Blackout and utilizing a 1:7 twist rate, this upper is optimized for stabilizing heavier projectiles, making it suitable for both suppressed and unsuppressed shooting. This upper commonly appears in builds utilizing a pistol gas system, which enhances reliability and performance in a compact configuration.
Specifications
Price and stock
The Stag Arms Stag 15 .300 Blackout 16 in Upper 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 $479.99 at Optics Planet for when it comes back.
Prices checked · refreshed daily across 37 retailers
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