Superlative Arms Adjustable Gas Block - Set Screw Mount, "Bleed Off"


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Superlative Arms Adjustable Gas Block – Set Screw Mount

Low Profile, Adjustable, Direct Impingement, Forward Venting “Bleed Off.”

Superlative Arms Adjustable gas block – set screw mount is ideal for many tactical setups and shooting styles. Available in all diameters from 0.625 to 0.936 and offered with a black melonite or a matte stainless finish.

The Sup. Arms patented “Bleed Off,”  a direct impingement gas block adjusts the gas flow by bleeding the gas out of the block instead of restricting the flow like a conventional adjustable block.

The pressure in the block reduces to only the amount required to drive the bolt carrier group. The remaining pressure bleeds from the block, reducing felt recoil and allowing the system to run cleaner and cooler. This performance-driven design reduces blowback and is beneficial on SBRs or when using a suppressor. If you want the best set screw-mounted gas block on the market, look no further!

The gas adjustment screw does not restrict the gas flow, so there is no erosion or seizing of the screw / no loss of detent due to carbon build-up. Although removable, a safety mechanism prevents the screw from coming out.

Sup. Arms adjustable gas blocks feature 30 positive-lock gas settings, accessible without hand-guard removal. Keep the heart of your rifle optimized, and reduce recoil with Sup. Arms Adjustable, “Bleed Off” Gas Blocks!


  • Gas Block – Assembled
  • (2) 10-32 x 3/16″ Socket Head Cap Screws
  • (1) Gas Tube Roll Pin
  • (1) 3/32 x 6″ L-Shaped Hex Key
  • Installation Instructions & QR Code for Video Tutorial

Product Information

Part Type

Upper Receiver Parts

Made in USA



AR10, AR15


416R Stainless

Coating Type

Stainless Steel, Diamond-Like Carbon (DLC)


30 Adjustment Settings


Superlative Arms

Attachment Type

Set Screw, Solid

Gas Block Diameter

.625, .750, .875, .936


Standard AR15 & AR10 Components



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