Griffin Armament .300 Blackout Hedp AR-15 Barrel - 9.5"
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Griffin Armament
Overview
The Griffin Armament .300 Blackout HEDP AR-15 barrel measures 9.5 inches in length and features a medium profile, making it a solid choice for compact builds. Designed for the .300 Blackout caliber, it utilizes a pistol-length gas system, which is ideal for maximizing reliability and performance in shorter configurations. With a twist rate of 1:8 and a thread pitch of 5/8x24, this barrel is well-suited for shooters looking to optimize their setup for both supersonic and subsonic ammunition. This barrel commonly appears in builds focused on the .300 Blackout caliber, particularly those utilizing a pistol gas system for enhanced maneuverability.
Specifications
Available Merchants(1)
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Price Alert
October 2026 on GunPartPicker
Griffin Armament .300 Blackout Hedp AR-15 Barrel - 9.5" ranked #52 of the 329 barrels builders added on GunPartPicker in October 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #59 of the 924 barrels builders have added. Builds with this barrel are nearly all chambered in 300 Blackout, nearly all on pistol-length gas, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in October 2026, and today the one retailer we track has it in stock. Prices barely moved in October 2026, holding around $246.95, so there haven't been real sales lately. Buying today, the lowest price is $246.95 at Optics Planet, which matches the best price we saw in October.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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