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Dedicated 22lr AR Build
#1
I've been working on a dedicated 22lr AR build and realized I may have screwed up ordering an upper receiver. Not a big deal if I did. I'll be able to use the upper in my next build.

Anyways, I was thinking about the differences in my build verses a standard AR-15 build. I'm using a mechanical bolt for the 22lr where a buffer and buffer spring aren't needed and there is no purpose in having a gas tube or gas block. I then realized the upper receiver I was about to install a barrel on has an access hole in the shape of an X for a gas tube.

Is this going to cause me some problems, or is it okay to use for the 22lr build? I'm seeing this going both ways.
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#2
Buehler? Buehler? Buehler?

Has anybody seen Ferris Buehler?
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#3
My dedicated .22 is a 10/22 that looks like an AR.
Other than that I can only take my AR's apart and reassemble them.
I'm not much help...you need Lycan's input on custom stuff.
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#4
I don't know a lot about this sort of stuff, but I've seen an M&P15-22 stripped down and it was pretty clear to me that the buffer tube's only job on that thing was to hold the stock on. The gas system is nonexistent and it has a blowback style action that fits in the same space as a standard BCG. The charging handle also had a shorter throw on it probably due to the short case length on the 22LR. The M&P 15-22 was designed as a 22 so it may work a bit different than a conversion kit.
Ammunition, it's the new lead bullion. Buy it cheap and stack it deep.
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#5
Here's an image of the bcg for a 22lr AR. [Image: 141e017d83210918f06a1fe9e4b36072.jpg]
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#6
Uinta Firearms;160912 Wrote:I've been working on a dedicated 22lr AR build and realized I may have screwed up ordering an upper receiver. Not a big deal if I did. I'll be able to use the upper in my next build.

Anyways, I was thinking about the differences in my build verses a standard AR-15 build. I'm using a mechanical bolt for the 22lr where a buffer and buffer spring aren't needed and there is no purpose in having a gas tube or gas block. I then realized the upper receiver I was about to install a barrel on has an access hole in the shape of an X for a gas tube.

Is this going to cause me some problems, or is it okay to use for the 22lr build? I'm seeing this going both ways.

The CMMG conversion kit I have is a blowback design. It doesnt actually use the gas tube. The x-hole in the upper is to fit the gas tube/piston arm that a traditional AR uses. If the gasses are being expelled out the barrel and up through the gas port of the barrel (and you said you removed the gas block), there isnt any gas to shoot back into the receiver. Many AR22's dont even have a gas system on them.

I might just remove the gas tube from my kid's AR and run it with just the conversion, see how it goes.
[Image: incubi+INK.jpg]. ABC,CBS,NBC,CNN no diff
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#7
No gas block. No port in the barrel for the gas block. Therefore, no gas tube. It's all good though. I realized I was just being stupid. I figured it all out, so I'm good to go. This is my very first build, ever. I started with a 22lr build because I didn't want to pile on too much learning for the first build. Once done, everything learned can be carried over to the next build where I will learn more, such as gas blocks, gas tube, buffer springs, buffers, etc.
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#8
Uinta Firearms;163915 Wrote:No gas block. No port in the barrel for the gas block. Therefore, no gas tube. It's all good though. I realized I was just being stupid. I figured it all out, so I'm good to go. This is my very first build, ever. I started with a 22lr build because I didn't want to pile on too much learning for the first build. Once done, everything learned can be carried over to the next build where I will learn more, such as gas blocks, gas tube, buffer springs, buffers, etc.

Sounds like you've had a good start. Best of luck on your next AR build (they have a tendency to reproduce like rabbits Smile ).
[Image: incubi+INK.jpg]. ABC,CBS,NBC,CNN no diff
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#9
I'll agree with that statement. I found these guys sitting in a Pelican case last time I went to Utah. I just had to make sure they were well taken care of, and turned into responsible firearms.

[Image: e43a30ec135f22e18ab84642512f7c6d.jpg]
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