As a rule of thumb, most "Low profile set screw" gas blocks will work (unless listed below). Clamp on style gas blocks will work as well, however, the screws may need to be slightly modified to allow for proper clearance underneath the handguard.
Most gas blocks with an ID of (.625", .750" or .875) should work while .936" will NOT work.
The following brands offer gas blocks that will NOT work:
-Odin Works (Only the "Low Profile Gas Block" model will work)
-JP Enterprises (No models work)
-YHM (Clamp Screw)
*Same rules apply for adjustable gas blocks.
Common adjustable gas blocks that will work:
-SLR Sentry (modification may be required for clamp on version)
-Superlative Arms (modification may be required for clamp on version)
-Any other gas blocks with similar dimensions
Comments
3 comments
Thank you for this information. I'd like to state the Superlative Arms Adjustable Bleed-Off Set Screw .875 gas block fits without any issues. Superlative does make a Clamp-On style, but I'm sure it would not work, go with the Set Screw type. Superlative Arms site does have measurements posted for their gas blocks.
The SeekinsPrecision Low Profile Adjustable Gas Block Works With the HWK Handguard I have them on my 300AAC BLK.
Superlative Arms .750 solid piston retrofit gas block does NOT work
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