Description
The Presma low-profile gas block fits AR barrels with a .750″ gas journal and sits low enough to clear free-float and standard handguards. It is machined from stainless steel and retained with set screws.
Features:
- Low-profile AR gas block
- Fits .750″ gas journal barrels only
- Stainless steel construction
- Set-screw retention
- Sits under free-float and standard handguards
Confirm your barrel has a .750″ gas journal before ordering — this block does not fit .625″, .875″, or .936″ journals.









