AR-22 question

[pennys dad]

Hey Everyone

Here is my question:

I am using a standard mil-spec AR lower on my 22lr dedicated CMMG upper.
I want to somehow make the lower 22lr dedicated as well, if possible. Has anyone done this?
Is there a lower out there that is marked 22lr?

Any thoughts?

[BigJ]

I have the exact same setup. But I'd never considered a dedicated 22lr lower. If you don't mind the slight derail, what would be the benefit?

[2shotjoe]

mine is marked multi-cal, throw a radlock on it and you can turn the BB on when you have bigger cals on it.

[Bunsen]

Besides the caliber marking what would be the difference?

[AfghanVetOrcutt]

I use the same lower for my CMMG .22 upper as my 5.56 upper. No issues so far.

The New Frontier Armory polymer lower seems to be a popular companion to the CMMG uppers. I know someone makes hammers that are thinner specifically for the .22 uppers but I don't know the manufacturer.

I'm with BigJ, why?

[r1ghtw1ng]

Spikes sells milspec lower receivers marked .22LR, but really, it's just a marking. I like my receivers to say multi-cal.

[AfghanVetOrcutt]

http://www.joeboboutfitters.com/New_Frontier_Armory_Blow_Back_Hammer_9mm_22LR_p/nfa-blowback.htm

Found 'em.

[pennys dad]

I have the exact same setup. But I'd never considered a dedicated 22lr lower. If you don't mind the slight derail, what would be the benefit?

No benefit at all, I am 100% comfortable with my mil-spec lowers and their function and fit. This is more a matter of a stupid legal bull crap, heck I dont even switch uppers, but on my 22lr's I dont use bullet buttons, radlocks or anything.
I know the lowers work no mater what, just wondering if there is a lower that at least says 22lr on it.

[pennys dad]

I did see someone once suggested pulling the spring and plug from the stock and replacing it with a non moving plug.

[AfghanVetOrcutt]

http://www.joeboboutfitters.com/TACCOM_22_Insert_Pressure_Plug_p/tc-pressureplug.htm

Just put that in front of your buffer and it's supposed to stiffen it up. I have one and I use it, no issues.

[BigJ]

No benefit at all, I am 100% comfortable with my mil-spec lowers and their function and fit. This is more a matter of a stupid legal bull crap, heck I dont even switch uppers, but on my 22lr's I dont use bullet buttons, radlocks or anything.
I know the lowers work no mater what, just wondering if there is a lower that at least says 22lr on it.

Hmm... ok... it sounds like you know this, but you don't need to use a bullet button on a lower that has a dedicated 22lr upper attached. That's not true with conversion kits (still need the BB), but when attached to a dedicated 22lr upper like ours, the BB can go away totally since the AW laws don't apply to rimfire rifles.

Does that help? I still feel like I might be missing what you're getting at here?

http://www.joeboboutfitters.com/TACC...essureplug.htm

Just put that in front of your buffer and it's supposed to stiffen it up. I have one and I use it, no issues.

Hmm... now that is interesting. I pulled my spring and buffer from the tube and set it aside, running the thing with nothing in there. And ran it for 300 rounds without any issues at all. The bolt springs back nice and hard (when clean) all on its own. Maybe this is needed for conversion kits but not the dedicated 22lr uppers?

[pennys dad]

BigJ your not missing anything I am just wondering whats out there if anything that fully dedicates an AR 22 or what idea's are folks thinking through.

My 2 current rigs are:
CMMG dedicated 22lr on a CALGUNS/JD lower - multi cal
CMMG dedicated 22lr on a Stag lower 5.56 - will be changing this one to a Colt lower
I use no radlock or bullet button

[donw]

Hey Everyone

Here is my question:

I am using a standard mil-spec AR lower on my 22lr dedicated CMMG upper.
I want to somehow make the lower 22lr dedicated as well, if possible. Has anyone done this?
Is there a lower out there that is marked 22lr?

Any thoughts?

bold is my emphasis...

yes..IF you can find them, Spikes Tactical and CMMG made a dedicated, lower in .22lr.

i have one...it's called ST-22 and is very clearly marked "22lr". it will accept centerfire uppers as well...i have 5.56 for it as well.

contact Spikes tactical...they may be able to help you: www.spikestactical.com

you can run it with or without the buffer spring and buffer when in .22lr...i leave it in mine for use with 5.56...the .22lr operates on its own spring and the BHO does not operate when using the 22lr but the mad dog mag is a bolt block after the last round and...the bolt closes when magazine is removed.

i do NOT use a BB on the .22lr...only when operating the 5.56

[BigJ]

BigJ your not missing anything I am just wondering whats out there if anything that fully dedicates an AR 22 or what idea's are folks thinking through.

My 2 current rigs are:
CMMG dedicated 22lr on a CALGUNS/JD lower - multi cal
CMMG dedicated 22lr on a Stag lower 5.56 - will be changing this one to a Colt lower
I use no radlock or bullet button

Ah gotcha. Cool deal. Looking forward to learning right along with ya.

you can run it with or without the buffer spring and buffer when in .22lr...i leave it in mine for use with 5.56...the .22lr operates on its own spring.

Good info, thanks!

[pennys dad]

:-) I am now questing for Spikes and CMMG 22lr lowers

bold is my emphasis...

yes..IF you can find them, Spikes Tactical and CMMG made a dedicated, lower in .22lr.

i have one...it's called ST-22 and is very clearly marked "22lr". it will accept centerfire uppers as well...i have 5.56 for it as well.

contact Spikes tactical...they may be able to help you: www.spikestactical.com

you can run it with or without the buffer spring and buffer when in .22lr...i leave it in mine for use with 5.56...the .22lr operates on its own spring and the BHO does not operate when using the 22lr but the mad dog mag is a bolt block after the last round and...the bolt closes when magazine is removed.

i do NOT use a BB on the .22lr...only when operating the 5.56