Superlative Arms Adjustable Gas Block – Set Screw Mount, “Bleed Off”


Set Screw Mount, Low Profile, Adjustable w/ Forward “Bleed Off.”

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 different 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," direct impingement gas block adjusts gas flow by bleeding the gas forward, 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 allow the system to run cleaner and cooler. This performance driven design reduces blowback, and is beneficial on SBR's 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 all the way 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!

Manufacturer Superlative Arms
Attachment Type Set Screw / Solid
Made in America? Yes
Adjustment Settings 30 (Front Adjustment)
Barrel Diameter 0.625" | 0.750" | 0.875" | 0.936"
Length 1"
Material 416R Stainless Steel
Finish Melonite | Stainless Matte
Weight 1.37oz (0.625") to 1.84oz (0.936")

* Buy the Clamp-on Mounted Version here *


  • 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

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Weight 4 oz
Dimensions 7 × 3 × 1.5 in

Superlative Arms

Part Type

Upper Receiver Parts


AR10, AR15


416 Stainless Steel

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