TacFire Pistol Upper Assembly .300 AAC Blackout 10 Barrel
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TacFire
Overview
The TacFire Pistol Upper Assembly in .300 AAC Blackout features a complete upper receiver with a 10-inch barrel, designed specifically for the AR-15 platform. This assembly is optimized for the 300 Blackout caliber, providing versatility for both subsonic and supersonic ammunition, while the carbine gas system ensures reliable cycling and performance. This upper is commonly found in builds that prioritize compactness and maneuverability, making it a popular choice for pistol configurations.
Specifications
TacFire Pistol Upper Assembly .300 AAC Blackout 10 Barrel
September 2026 on GunPartPicker
TacFire Pistol Upper Assembly .300 AAC Blackout 10 Barrel ranked #49 of the 615 upper receivers builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #48 of the 1,654 upper receivers builders have added. Builds with this upper receiver are nearly all chambered in 300 Blackout and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today all 6 retailers we track have it in stock. It dipped to $270.99 at Ammunition Depot for a stretch in September 2026, under its usual $299.99, so sales do come around. Buying today, the lowest price is $252.88 at BattleHawk Armory, which matches the best price we saw in September.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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