. 22lr conversion, how simple is it really? - Page 3
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Old 08-08-2014, 06:07 AM   #21
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Well something that I don't see mentioned here yet (unless I missed it). If you want real accuracy from your 22lr then you might want to think about a dedicated 22lr upper (or one of the suggested dedicated 22lr rifles). A conversion bolt is okay for pinking but there are a couple of drawbacks. First of all most 223 / 5.56 barrels are going to be somewhere between 1 in 7 & 1 in 9 rifling twist. This is just too fast of a twist for the 22lr which likes a 1 in 16 twist much better for bullet stabilization. Another problem is that 223 / 5.56 has a bore diameter of .224 (larger than a true 22) which means that 22lr has a hard time properly engaging the rifling in the barrel.

Long story short; a conversion bolt will allow you to shoot 22lr but not very well. It will just never shoot as well as a dedicated 22lr upper or rifle will. The two schools of thought on this are:
1) a dedicated upper on your AR lower allows you to practice with the same trigger and controls as your 223 / 5.56 with pretty much the same weight / size gun.
2) A dedicated 22lr rifle costs about the same as a dedicated upper with the benefit of having a full rifle and not having to switch uppers back and forth.

I own a S&W ar-15-22 and it shoots very well but is made of mostly plastic and has a very different feel to me than a true AR does. That said I plan on selling my 15-22 and re-investing in a CMMG dedicated 22lr upper for reason #1.

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Old 08-08-2014, 06:22 AM   #22
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Quote:
Originally Posted by GTX63 View Post
You can purchase a dedicated 22lr AR 15 such as a Mossberg for $300 and up. S&W make one for about $500 and I own a Colt. The swapouts are not difficult and are cheaper; I just preferred to have the extra rifle on the bench ready to go.
I also prefer this solution and have the Colt, too (M4 .22lr). The S&W M&P15-22 also is a great choice.
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Old 08-08-2014, 06:27 AM   #23
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Don't forget shooting or using the 22lr conversion through the 223/556 barrel will build a nasty lead or carbon build up in the gas tube.
That's what i read on forums.

I agree with "Why not get a dedicated 22lr AR style?". The S&W M&P 15-22 is about $400ish and you won't regret it!
Here is mine..


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Old 08-08-2014, 06:54 AM   #24
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Quote:
Originally Posted by oO_Rogue_Oo View Post
Well something that I don't see mentioned here yet (unless I missed it). If you want real accuracy from your 22lr then you might want to think about a dedicated 22lr upper (or one of the suggested dedicated 22lr rifles). A conversion bolt is okay for pinking but there are a couple of drawbacks. First of all most 223 / 5.56 barrels are going to be somewhere between 1 in 7 & 1 in 9 rifling twist. This is just too fast of a twist for the 22lr which likes a 1 in 16 twist much better for bullet stabilization. Another problem is that 223 / 5.56 has a bore diameter of .224 (larger than a true 22) which means that 22lr has a hard time properly engaging the rifling in the barrel.



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Old 08-08-2014, 09:31 AM   #25
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Ruger makes one also, it takes the 10-22 rotary magazines so there are all kinds of hi cap mags out there.

Yes, Ruger's SR-22 Rifle is a nice rig, Buddy of mine has it. It's also $625,.. For that I can buy 2-10/22's and convert em myself, or Two Mossberg's,..or the S&W and have over $150 left over for ammo and extras,...but I'm also told the Cmmg is good, and it uses Black Dog Mags. I also have 4 of the 25 rd mags for my 702. Which Fit the 715 Pistol AR, but not the carbine/rifle version. What I really want is GSG's 110 rd mag to be adopted for the AR's in 22. Right now they only have for the GSG mp5-22 and the 10/22,...
Someone wanted to trade me 2 zip22's for my 10/22 or my Mossberg, both have $$ and work in them,..I told him I don't want to go near a Zip22,...it's one good feature is it uses 10/22 mags,..but the rest of it is a horror show of failures.


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Old 08-08-2014, 09:38 AM   #26
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Yes, Ruger's SR-22 Rifle is a nice rig,
Isn't it Ruger SR22 is a handgun?
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Old 08-08-2014, 03:08 PM   #27
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Since someone brought up using BlackDog magazines, I'll chime in again.

If you are converting an AR lower to use 22lr I would suggest a Better-Mag adaptor. It converts your AR lower to use S&W 15-22 magazines. They tend to be very reliable, easy to find and cost competitive.

http://www.redi-mag.com/index.php?l=product_detail&p=52

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Old 08-10-2014, 10:45 AM   #28
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Isn't it Ruger SR22 is a handgun?

They also build an SR-22 Rifle,..


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Old 08-18-2014, 12:19 AM   #29
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Take a look in the 22 rimfire section here, I just got done with a 22lr dedicated rifle you might find interesting. I really recommend at least a dedicated 22 upper if not a full rifle. No gas system, and a proper twist barrel are just the first reasons that come to mind. The tensioned sleeve barrel that I used is excellent, and very accurate...
http://www.firearmstalk.com/forums/showthread.php?p=1617561

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Old 08-18-2014, 01:09 AM   #30
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+1 on the CMMG stainless unit. I sold my CMMG thinking I had to have a dedicated .22 upper, it was no more reliable than the slip in unit and if it was any more accurate I couldn't tell. I had $600 plus in the dedicated upper, could have bought a complete rifle like the S&W or another CMMG bolt unit and $400 worth of ammo. ( Not that I'd been able to find $400 worth of .22 ammo!) The dedicated upper was also a CMMG :

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