The Wraithworks AR15 Gas Block (brand part no. GB625) is a low-profile gas block sized for a .625-inch barrel gas journal, the common diameter found on most mid-weight and government-profile AR-15 barrels. Wraithworks builds the block with a low, compact profile so it clears underneath most free-float handguards without any additional fitting or grinding. It is a straightforward, direct-fit component for anyone building or upgrading an AR-15 upper that needs a clean, low-visibility gas block under the rail.

Key Specifications

• Low-Profile Design sits flush under a free-float handguard.
• .625-Inch Barrel Journal Fit matches mid-weight and government-profile AR-15 barrels.
• AR-15 Platform Compatibility fits standard AR-15 upper builds.
• Handguard Clearance is sized to clear under most free-float handguards.

Frequently Asked Questions

What barrel diameter does this gas block fit? A .625-inch gas journal diameter.

Will it fit under my handguard? Its low profile is designed to clear most free-float handguards.

Buy the Wraithworks Low-Profile Gas Block

Finish out your AR-15 upper with a Wraithworks low-profile gas block from our AR15 parts selection. Order online and we will ship it straight to your door from our Lubbock, Texas gun shop.