Superlative Arms .750″ Adjustable Gas Block

$99.00 $92.00

Superlative Arms  .750″ Adjustable Gas Block, Bleed Off – Solid, Melonited:  SABO-DI-750SM

10 in stock

Sold By: On Mark Arms, LLC
SKU: 204165 Categories: , , , Tags: , , , , Brand:


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 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.
  • Patented 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.                     

Three modes of operation:

  • Standard:  all possible gas is directed at the carrier through the gas tube

  • Restricted:  gas pressure to the carrier is regulated by blocking the gas port

  • Bleed Off:  gas pressure is regulated by directing excess gas forward and out of the gas block


Pew Pew Tactical:  Superlative Arms Gas Block Review

Major Pandemic:  Superlative Arms AR15 Piston System Review with Gas Block info

Major Pandemic:  Why should I buy an Adjustable AR Gas Block?

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

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