The Aero Precision Adjustable Low Profile Gas Block (brand part number APRH101613C) sized for a .625-inch barrel journal lets a shooter fine-tune their AR-15’s gas system for the specific ammunition and configuration they’re running. Aero Precision built it especially with suppressed shooters in mind, since a can typically pushes more gas back through the action than an unsuppressed barrel, and the adjustability lets that excess be dialed back down for cleaner cycling and less blowback at the charging handle.

Key Specifications

• Sized for a .625-inch barrel gas journal.
• Allows the gas system to be finely tuned for the specific ammunition and build.
• Particularly useful for reducing blowback on suppressed firearms.
• Also useful for competition builds looking to mitigate recoil impulse.
• Uses a low-profile design to fit under most free-float handguards.

Frequently Asked Questions

Why would I want an adjustable gas block instead of a fixed one? It lets you fine-tune the gas system for your specific ammunition and configuration, particularly useful for managing excess gas on a suppressed rifle or dialing in recoil on a competition build.

Will this fit under my handguard? It uses a low-profile design intended to fit under most free-float AR-15 handguards, though clearance should always be verified against the specific handguard being used.

Buy the Aero Precision Adjustable Low Profile Gas Block, .625

Our Lubbock, Texas team will get this gas block ready to ship as soon as it’s ready. Reserve the Aero Precision Adjustable Gas Block now and dial in your AR-15 gas system the right way.