Superlative Arms .750" Adjustable Gas Block, Bleed Off - Solid, Melonite Finish

Superlative Arms
(5 reviews)
Current Stock:

The Superlative Arms patented “Bleed Off”, direct impingement, gas block for the AR15 platform adjusts the gas flow by bleeding the gas out of the block instead of restricting the flow like conventional adjustable blocks.  Results:

  • The pressure used in the block is reduced only to the amount required to drive the bolt carrier. The remaining gas / pressure are bled out of the block allowing the system to run much cleaner and cooler. 
  • Reduction of felt recoil.
  • Patent pending adjustment detent is located outside of the block and therefore no contamination.
  • The gas adjustment screw does not restrict the gas flow; therefore there is no erosion or seizing of the screw / no loss of detent due to carbon build up.  Although it is removable, we have added a safety mechanism, which stops you from unintentionally backing the screw all the way out.
  • When using SBR’s and / or suppressors the bleed off port allows the excessive pressure to be exhausted out of the block reducing blow back.


  • Gas Block Material: 416 SS
  • Finish: Melonite, QPQ
  • Barrel Diameter: 0.750"
  • Weight: 1.68 oz.
  • Length: 1.00"
  • Attachment Type: Solid
  • Gas Adjustment:  (Patent Pending) 30 Locked Positions, Front Of Block 
  • Bleed Off Port:  (Patent Pending) Front Of Block


  • Gas Block - Assembled
  • (2) 10-32 x 3/16" Set Screws
  • (1) Gas Tube Roll Pins
  • (1) 3/32 X 6" L-Shaped Hex Keys
  • Installation Instructions & QR code for video tutorial


  • 5
    A fine gas block

    Posted by David on Jan 16th 2024

    One of the finest adjustable gas blocks out there.

  • 5
    Great product!

    Posted by Paul Litzov on Sep 23rd 2023

    Amazing AR upgrade. This is my third one. Easy way to tune your AR. Recently got a suppressor and making the necessary adjustments was a breeze!

  • 5
    Adjustable is the way to Go

    Posted by William May on Jul 25th 2021

    Amazing difference in having an adjustable gas block especially with a suppressor. Only issue is it is hard to adjust with long hand guards. I would recommend that you remover handguard if possible during adjustment phase. Very good quality

  • 5
    Great Gas Block

    Posted by Andrew K on Dec 17th 2016

    This is an awesome adjustable gas block I have them or the Supurlative Arms pistons systems on all of my AR's

  • 5
    These gas blocks or the best!

    Posted by dave on Dec 14th 2016

    Adjustable and keep the extra gas out in front of you. These are on every build from now on.