Seekins Precision Select Adjustable Gas Block - .750"

Manufactured by Seekins Precision
SKU: 0011510065
MPN: 0011510065
Manufactured by Seekins Precision
1 Review

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An adjustable gas block can drastically improve your rifle's characteristics and longevity, but making those adjustments almost always requires fiddling with long keys or partially disassembling your rifle. Not exactly a field expedient procedure. The Seekins Precision Select Adjustable Gas Block was designed from the ground up to correct that and provide the end user with true tool-free on-the-fly gas system adjustments. Quickly switch from suppressed to unsuppressed whenever you want with just the flip of a switch! Rifle getting dirty and need more gas? No need to clean or disassemble your firearm, simply bump the gas selector over to keep your rifle up and running and minimize your down time.

  • 40-positions for fine adjustment
  • Tool-free gas selection switch
  • Perfect for suppressed and unsuppressed use
  • High strength tool-steel construction
  • Melonite finish for corrosion resistance
  • Fits .750" gas seats

For suppressor hosts, simply start with the suppressor installed and set your initial gas setting with the fine tuning adjustment on the front of the gas block. The ideal setting is one click higher than what will reliably lock the bolt open on an open mag. From there, simply install the gas switch in the left most position to set your minimum gas setting. From there, if the rifle gets dirty or you remove the suppressor you can simply push the switch over to the right to add gas to the system and keep your rifle running reliably.

Proof that the American Dream is alive and well, Seekins Precision began in 2004 with a single product. Their rapid growth has carried them from the early days of manufacturing scope rings to include more than ten major product lines, including complete rifles.
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BrandSeekins Precision
Gas Seat Diameter.750
MaterialSteel - Tool
TypeSet Screw
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to

Ratings & Reviews

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Thinking about using it on a suppressed rifle? Then your gonna love it.


This is going on every one of my rifles. I put this on my AERO Precision AR10 chambered in .308 to solve the suppressor over gassing problem. Now i can switch from suppressed to un-suppressed with the flick of a switch on the gas block. By far the best thing to come out for the AR in the past few years. I installed the gas block, went to the range, and tuned it to run perfectly while i had my suppressor on. Then i took the suppressor off, moved the switch to the full open (+) setting, and it ran perfectly. So i don't have to compromise between being over gassed or under gassed when using my suppressor... or not.