Double Star .625" Picatinny Gas Block
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DoubleStar
Overview
The Double Star .625" Picatinny Gas Block is designed to fit a .625-inch diameter barrel and features a railed profile for easy attachment to your Picatinny rail system. Crafted from aluminum, this gas block provides a lightweight solution while ensuring reliable gas flow for your firearm. This component is often found in carbine gas system builds chambered in 5.56 NATO, making it a practical choice for those looking to enhance their AR-15 setup.
Specifications
Build history on GunPartPicker
Builders have been adding the DoubleStar Double Star .625" Picatinny Gas Block to their builds on GunPartPicker since February 2026. All time, it ranks #73 of the 193 gas blocks builders have added.
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, but today only BattleHawk Armory has it in stock. Prices barely moved in September 2026, holding around $31.99, so there haven't been real sales lately. Buying today, the lowest price is $31.99 at BattleHawk Armory, which matches the best price we saw in September.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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