• 6 preset settings for easy adjustment (5 pre-sized settings and 1 closed setting)
  • Easily switches position by rotating the collor by hand or while it's inside a handguard with a bullet
  • Tool-less adjustment collar
  • Clamp-On mounted
  • Recommended torque value for the 3 clamp screws should be no more than 25 in/lbs.


  • Material: Tool Steel
  • Finish: Melonite
  • Weight: 2.86 oz.
  • Height: 1.399"
  • Length: 1.511"
  • Width: 1.177"


  • AR-15 and AR-10 barrel with .750" gas seat


  • 1x Gas Block Housing
  • 1x Gas Block Rotator Collar
  • 3x Clamp Screws
  • 1x Spring Loaded Detent
  • 1x Setting Screw
  • 2x Allen Wrenches
  • 1x Gas Tube Roll Pin

Strike Industries Collar Adjustable Gas Block


Some upgrades you do just because they're fun. You change a mag release here or charging handle there for no other reason than just to do it. Then you get into the serious stuff. I don't mean that you need an engineering degree, only that you start to modify things for a purpose. The first step along the way for many is an adjustable gas block.

Hey, I failed Physics!

Don't worry, I'm not going to bore you with a lecture. Just think of the SI adjustable gas block as a way to balance the forces inside your weapon. There has to be enough gas sent back to the BCG to make the gun work. However, too much gas isn't a good thing. If you want to fire a stronger or lighter load, you need to meter the amount of gas available. The same thing goes when you run your gun suppressed. It's all a matter of balance. Too little gas and your gun won't reliably run. Too much and you get increased recoil plus added wear on the internal parts of your AR.

A New Approach

Adjustable gas blocks have been around a long time. However, the Strike Industries collar adjustable gas block makes the process way more straightforward. The SI adjustable gas block has six positions that lock in place with an internal spring-loaded detent. The gas block collar smoothly rotates into position with only the help of the tip of a bullet or a blade. That means you don't have to remember to bring an Allen wrench with you. A Strike Industries collar adjustable gas block lets you match your gun to your needs quickly and without any hassle.

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