Source for an Adjustable AR15 Gas Block

incorrigible

incorrigible

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I'm looking to source a hand adjustable low profile gas block for an AR15. Preference is that there is no requirement to use a key or screwdriver to adjust. It would be the bee's knees if it had an adjustment knob sans the XCR (almost worth buying an XCR just to have the valve :D).

Just can't recall seeing such an animal out there...
 
I don't understand why someone would need one. It's a direct inpingment system and is supposed to use the full force of the tapped off gases to work correctly. Why would you want to adjust the gas?

With a piston it makes sense.
 
stormbringer said:
.that is exactly what the poster did.:mad:
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I read it as just an aggressive rhetorical question. Having said that:
- target shooting where you want to adjust the gas precisely to requirement, minimizing perceived recoil.
- systems with reduced-mass carriers and buffers (used in target shooting and 3-gun).
- because you can.
- while called "DI", it isn't really direct impingement. It's just a piston system - where the "asker" says adjustable gas "makes sense" - with the piston internal to the carrier.

People routinely ask "how do I do X", and instead of getting some helpful advice get a chorus of "you must be nuts, why would you want to do that". I find it wasteful.
 
I was asking because I didn't understand. It wasn't meant to be aggressive.

Edited to add: Incorrigible, if my post came across as a slam I apologize. I should have waited for someone with an answer to post first then ask questions.
 
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recce said:
I was asking because I didn't understand. It wasn't meant to be aggressive.

Edited to add: Incorrigible, if my post came across as a slam I apologize. I should have waited for someone with an answer to post first then ask questions.
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No harm, no foul.

And thanks! Sincereity goes a long way in my world...

OldRanger said:
Do you have a link for that?
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Looked like a Brownells listing. Turns out is was;

http://www.brownells.com/aspx/NS/store/productdetail.aspx?p=9947&st=regulated%20gas%20tube&s=
 
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recce said:
I don't understand why someone would need one. It's a direct inpingment system and is supposed to use the full force of the tapped off gases to work correctly. Why would you want to adjust the gas?

With a piston it makes sense.
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It's a few reason. I'm building a 10.5 upper for 3 gun and its helps to have the extra control of gas with uber-short barrels. I toy with changing my loads and it aid in control of combustion gasses as well. Plus it nice to be able to shut off gas completely should I not want the bolt to cycle past battery.

But mostly it because I bore easily and this is one thing I haven't tried that I can play with and may give me more control. Kind of the way I like long range shots... more variables, more challenge.

I'd really like to find something along the lines of an XCR or Sig (see pics) but I'm beginning to thing that there is no such animal...

XCRadjustiblegasvalve.jpg


Picture003.jpg
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Thanks for the lesson. I own a Colt 16 copy and an M forgery. Nothing with a requirement for a change in the gas system.

Once again I apologize for throwing your thread off track.
 
Jamie said:
I think Dlask has one.....they run it on the mini moose
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The 'Mini Moose' is leaning toward my first choice for an upper; Josef makes some fine kit. But I believe(and please correct me if I'm wrong) it utilizes an allen key as well to adjust the gas system. My preference for an adjustment w/o tools. A detented knob or slide perhaps? An adjustment that could be made on the run w/o pulling a tickle trunk of spare tools along.

Perhaps it's just me as I don't see anything like it out there outside of the XCR and Sig. Lord knows I can be particular. If I was more of a machinist I'd make the thing.
 
incorrigible said:
The 'Mini Moose' is leaning toward my first choice for an upper; Josef makes some fine kit. But I believe(and please correct me if I'm wrong) it utilizes an allen key as well to adjust the gas system. My preference for an adjustment w/o tools. A detented knob or slide perhaps? An adjustment that could be made on the run w/o pulling a tickle trunk of spare tools along.

Perhaps it's just me as I don't see anything like it out there outside of the XCR and Sig. Lord knows I can be particular. If I was more of a machinist I'd make the thing.
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yes tools are needed to adjust
 
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