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Old August 10, 2013, 09:19 PM   #1
JKilbreth
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Converting AR15 from .223/5.56 to .22LR

I have an AR15 chambered in .223/5.56 that I want to convert to 22LR. So, I have several questions:

My thinking is, all I have to do is buy a new BCG and magazine. Is this true? Do I need more than that?
Also, what are some good brands and locations/websites that I can get what I need for the conversion?
What is the approximate cost for conversion?

Thanks in advance, y'all!
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Old August 10, 2013, 09:24 PM   #2
Carne Frio
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Yes, the conversion bolt system and magazine:
https://www.cmmginc.com/category_s/1851.htm
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Old August 10, 2013, 10:19 PM   #3
4V50 Gary
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Buy a dedicated 22LR upper. An insert like the Colt Conversion Kit will lead up your 5.56 mm bbl. I like the one from Kuehl and Spike. Others are good too.
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Old August 11, 2013, 08:03 AM   #4
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Definitely get a dedicated upper that is made of metal like a DPMS or CMMG. The Chiappa is plastic and avoided by many.
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Old August 11, 2013, 08:11 AM   #5
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get a dedicated upper that is made of metal like the TacSol

...
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Old August 11, 2013, 08:11 AM   #6
BigTex308
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Re: Converting AR15 from .223/5.56 to .22LR

Get a dedicated upper. Colt DPMS CMNG all make good ones.




Ike
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Old August 11, 2013, 06:44 PM   #7
MarkCO
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Yes, yes, yes. Get a dedicated upper. They run from $300 to north of $1000, but overall are a better option. Stay away from the plastic ones too.

No leading of gas tube, better accuracy.
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Old August 11, 2013, 07:25 PM   #8
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As noted dedicated upper, I have a Spikes on a New Frontier lower basically a fun gun.
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Old August 12, 2013, 08:38 AM   #9
Fishbed77
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Quote:
Buy a dedicated 22LR upper.
As others have mentioned, this is the way to go.

I have a CMMG upper - it has been fantastic. Reliable and very accurate.
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Old August 12, 2013, 09:29 AM   #10
BillyJack3
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I'm going with a dedicated upper for my .22 conversion. Not only will it keep from leading up my gas tube and the rest of my upper. It will also come with the proper twist rate and you'll get better accuracy.

Or, get a M&P 15-22. I have one of those also.
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Old August 12, 2013, 10:16 AM   #11
Yung.gunr
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I personally like the idea of a different rifle, like the M&P. You could spend quite a bit on the conversion kits. Why not get a second one altogether? Two rifles is better than one anyway.
Let's say you want to go varminting with your .22, you still have your .223 at home for the Mrs. to use if something crazy goes down while you are out. Just me...
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Old August 12, 2013, 10:54 AM   #12
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Mine nothing fancy.

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Old August 12, 2013, 11:44 AM   #13
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CMMG Sierra upper on a Delaware Machinery lower,very accurate and reliable.Lots of fun with these.
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Old August 16, 2013, 09:45 AM   #14
TomADC
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I just found this little part that people tell me really helps a 22 AR out.

http://taccom3g.com/22INSERT_PRESSURE_PLUG.html
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Old August 17, 2013, 12:31 PM   #15
4V50 Gary
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I should add that the .224 caliber barrel of a 5.56 mm gun is .001" too big for the 22 LR. The results is poorer accuracy and leading. Hence my preference for a dedicated upper.

If you have Vol. 1 of The Black Rifle by R. Blake Stevens, you can confirm it from that book.
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Old August 17, 2013, 01:08 PM   #16
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For that kind of money I'd buy a dedicated platform.

Quote:
Yes, the conversion bolt system and magazine: https://www.cmmginc.com/category_s/1851.htm
For the price of the conversion kit you could get a good 10-22 and for little more than the price of a dedicated upper you can get an M&P 15/22.

IMHO Boomer
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Old August 18, 2013, 03:56 AM   #17
Yung.gunr
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Yup Boomer, I agree with you on that one. I still don't understand people putting all this money into seperate uppers.

But, then again the AR-15 bug has not and will not likely bite me.
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Old August 18, 2013, 07:07 PM   #18
Fishbed77
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Yup Boomer, I agree with you on that one. I still don't understand people putting all this money into separate uppers.
If you want a real forged aluminum AR-15 chambered in .22LR (with the proper weight, feel, and balance), as opposed to a plastic AR replica, you will gladly go the dedicated upper route.

Here is a photo of my CMMG Sierra .22LR on a PSA lower. It's an incredibly accurate and reliable .22LR AR-15.


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Old August 19, 2013, 08:28 PM   #19
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Fishbed77

That's a beautiful gun, I like the look. I wouldn't mind having one of those in the stable, but I prefer the lower maintenance of my 10-22's. I don't have to deal with the leading of the gas port, I don't need to worry if my bore is. 223 or. 224 and with no gas system the 10-22 generally stays cleaner.

None of these are major issues just my point of view. If I had that gun of yours I'd probably just deal with any small issues.

I'll also admit to being a bit biased toward the 10-22. I also leaning toward my sks over my AR's.

RR Lar-8 match = 20 rd mag in one hole
DPMS Panther .308 = Compact and lightweight civilian battle rifle wanna be.
Colt AR-15 = Great for blowing up bushy tailed lamb rats
SKS = Nearly indestructible Real live battle rifle

When shtf I grab the sks.

Sorry got a little off topic there. Back to your regularly scheduled programming.

Boomer
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Old August 20, 2013, 08:42 AM   #20
Fishbed77
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Quote:
That's a beautiful gun, I like the look. I wouldn't mind having one of those in the stable, but I prefer the lower maintenance of my 10-22's. I don't have to deal with the leading of the gas port, I don't need to worry if my bore is. 223 or. 224 and with no gas system the 10-22 generally stays cleaner.
There is no gas port to deal with on dedicated .22LR AR-15 uppers. There is no gas tube. There is no gas system at all. They work on blowback, just like Ruger 10/22s.

There is no worrying about bore diameter on a dedicated .22LR AR-15 uppers. The barrel is sized to the .22LR projectile and has the proper twist. Hence the word "dedicated".

Cleaning and maintenance of a dedicated .22LR AR-15 upper is easier than a 10/22 in my opinion, because the AR is so easy to field strip (I do own a 10/22, btw). Pull the pins, pop out the charging handle and dedicated .22LR bolt, and wipe it down. The bolt is much easier to remove and re-install than the 10/22, and unlike the 10/22, the barrel can easily be cleaned from the breach end.


.

Last edited by Fishbed77; August 20, 2013 at 09:05 AM.
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Old August 20, 2013, 12:38 PM   #21
Boomer58cal
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I stand corrected.

I always wondered how they dealt with the gas system. The one bolt conversion kit I've dealt with didn't function very well unless you used heavy bullet high velocity ammo. Oddly enough it also liked Aguila SSS 60gers also. I guess there's enough back pressure with that big slow bullet to make it work. They leaded like mad though.

Thanks for the schooling

Boomer
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Old August 20, 2013, 09:12 PM   #22
Justice06RR
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If you're spending $200 for a 22lr conversion (bolt and mag), you can get a Ruger 10/22 for $227 at Walmart.

And if you are spending $300 on a dedicated 22lr upper, you can buy a M&P15-22 for around $100 more.

I'm always more for having an extra gun anyway.
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Old August 20, 2013, 11:13 PM   #23
Fishbed77
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Quote:
And if you are spending $300 on a dedicated 22lr upper, you can buy a M&P15-22 for around $100 more.
And you'll have a plastic AR replica.

A fine firearm, mind you, but not the same as a having a true AR-15 chambered in .22LR. As described above, a dedicated .22LR is well worth the extra money, though they are not necessarily that expensive. Not counting the optic, I have less than $600 in the dedicated .22LR AR-15 I've pictured above. A little more than a M&P15-22, for sure, but you get what you pay for.
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Old August 22, 2013, 12:43 AM   #24
Boomer58cal
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And you'll have a plastic AR replica.
Be careful I made a similar statement a few months back I was severely scolded for it

Boomer
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Old August 22, 2013, 04:40 PM   #25
Fishbed77
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Be careful I made a similar statement a few months back I was severely scolded for it
An M&P15-22 is not an AR-15. It looks like one, but the construction is completely different and, while it will accept many AR accessories, there is almost no parts interchangeability. Not to mention its polymer construction.

Again, the M&P15-22 is a fine firearm (and I'd take it over that Umarex "Colt" M4-22 all day long), but it is not an AR-15.
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