AR Build with CMMG 22LR conversion - Question

JoeLiberty said:

As JD suggested you could fill the gas port itself with lead, and yes, that can happen even if the gas block is backward. Maybe that could be pushed out when you remove the gas block? or it might ruin your barrel, who knows? All we can do is guess, since it's quite likely no one has done that before.
I don't know what you are looking to hear. Multiple well informed people have given you pretty good suggestions, based on their own experience. A couple said just run it as-is, it's fine, and the rest said they didn't enjoy their experience with that product at all. One gent even suggested a barrel that gives you great function with both 22lr and 5.56. I mean c'mon if you want minimal changes to convert the rifle, that's it! But you don't want to hear it... It sounds like all you want to hear is "yes, taht's the best idea evar. You are very clever man to figure out". You're obviously gonna do what you're gonna do. So just do it. Let us know how it goes.
Also, if what you want is proper function, be advised that the CMMG kit alone does not do this. The bolt won't lock/release like normal. Certain CMMG mags have an extension to jam the bolt open on the follower, but the bolt closes when you take out the mag.
I highly recommend the boonie packer 'Better-Mag' adapter. It uses M&P 15-22 mags, and restores the bolt lock function. The bolt locks back on empty mag, so you can change mag and drop the bolt with the bolt release. Function is flawless (though I use a dedicated barrel). You can teach her how to clear malfunctions (a good idea). The mags are also easier to load.

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Can anyone think of any legitimate reason this would not work or would be a bad idea?

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thperez1972 said:

Even if this idea is not common, I doubt I'm the first person to have thought of it. That's why I posed the question. I was hoping to get input from people who may have tried it or may have thought of a reason why it might not work or might be a bad idea. This is where you seem to have gotten mixed up. Idea 2 may be a better idea than Idea 1 but that doesn't make Idea 1 a bad idea. That just makes it not the best idea. Just because a dedicated barrel may be a better idea than covering the gas port on the 556 barrel does not mean covering the gas port is a bad idea. I dismissed the idea of a dedicated barrel in the initial post, yet a number of people still felt the need to post that suggestion without regard to the question actually being asked. I even explicitly stated "Even with the suggestions, I was not going with a dedicated upper" and people still decided to reply with off topic posts. I have a dedicated 22lr pistol so I am familiar with them.

And I'm not looking for "proper function." (Did you even read the thread before chiming in?) As I stated, "The 22lr is for familiarization." The goal is for her to get comfortable laying behind the rifle and pulling the trigger. After step 1 has been achieved, we can start on other skills. But I suspect you mentioned "proper function" as an excuse to segue into another unsolicited and off-topic suggestion.

As far as what I'm looking to hear, that was the last line of the initial post. I'll quote it below for you as well.

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JoeLiberty said:

An excuse? Yup I spend my whole day trying to figure out how to de-rail your threads.
It is reasonable to assume that you'd want to 'familiarize' her with all the functions of the AR-15, not jut the trigger. You probably have a 22lr or BB gun that has a trigger. Sheesh.

Again, one reason it is a bad idea is that you can plug up your gas port. Another reason is that based on our collective experience, there's a good chance you're not gonna be happy with the end product. Another reason is that it's unnecessary. Is that on-topic enough? Do the thing. You are very smart. Smartest ever. This is a very good idea.

Good grief man, we're just trying to help you out (or someone out there who might have a similar question).

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wcweir3 said:

Let her build it so she look at it and know what every part does and why and when she wants to go to 223/556 she will learn what and why even if you have to get a new barrel.
I think you are the right track.
My2
Wingate

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thperez1972 said:

I never stated you spent your whole day doing anything. But it appears you came across the thread and felt the need to post your unsolicited suggestion so you invented a reason to try to make it seem on-topic. Yes, I want to familiarize her with the functions of the rifle. That will be done in stages. It would be reasonable to assume that someone should be comfortable with the trigger before they practice weapon malfunctions in a live fire shoot house. Learning is done in stages. You should not teach someone everything in one sitting. As I know the student much better than you, is it possible that I may be more familiar with what is needed than you are? Must every facet of every decision be fully explained so you may help formulate a teaching plan you will take no part in?

Yes, lead can plug up the gas port. That may or may not happen and may or may not be able to be taken care of down the line. That negative has been heard and processed. Happiness is subjective and does not answer the question, still making it off-topic. It being unnecessary does not answer the question, making it also off-topic. So, in essence, you've spent a little bit of time voicing your opinion and adding nothing topical.

If you were trying to help, answer the question. You seem upset your off-topic suggestions have not caused me to abandon my original question.

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JoeLiberty said:

I'm not upset. Just confused about why you continue to berate people who are just trying to be helpful. U mad, bro?

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jdindadell said:

I do like that adapter that was mentioned to allow the use of the BHO, but I have not priced the S&W 15-22 mags...

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thperez1972 said:

It looked like about $40 for the adaptor and about $15 per 15-22 mag.

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