Low Profile Set Screw Gas Block .750" - AR15/M4


Stop Worrying About Compatibility When Changing Handguards

When changing your handguard, there is the possibility that you may run into clearance issues with your new handguard and the gas block. STNGR's Low Profile Gas block works with almost any handguard on the market. The low profile allows it to sit closer to the barrel allowing all STNGR handguards to work with this gas block.

  • Premium Grade Steel - Won't corrode or warp over time
  • Simple set screw design - Installs in seconds
  • Low Profile - Compatible with virtually any handguard out there

Selecting the Right Gas Block
You will need to check with your barrel manufacturer for the diameter of the gas block journal. The most common for .223 and 5.56 barrels is a 0.750" gas block. That means the gas block journal on your barrel should measure very close to 0.750". However there other sizes out on the market so it is best to double check with your barrel manufacturer before ordering a new gas block. Other than that, there really isn't much to be concerned about.


  • Material: Premium grade steel
  • Inside Diameter: 0.750"
  • Set Screw Spacing: Approximately .40"
  • Wrench Size: Set screws require a 3/32" allen wrench
  • Style: Low profile set screw type
  • Compatibility: Works underneath all STNGR handguards and nearly all handguards on the market
  • Warranty: SWARM Lifetime Warranty


  • 1x 0.750 Steel Gas Block
  • 2x Set Screws
  • 1x Gas Block Roll Pin