AR .22LR conversions?

[Grayfox54]

I'm thinking about getting a .22LR conversion kit for my M&P-15. I know nothing about them. Please educate me. 

[Garufa]

Basically, you remove the BCG, insert the conversion assembly and commence to shooting.  They are very simple devices.

I have a CMMG that I haven’t used in years, but recall it to be dependable.  Accuracy is acceptable for firing a .22 LR through a barrel not designed for it at close ranges I guess.

Edited December 22, 2019 by Garufa

[Hozzie]

Just buy a Smith M&P 15-22 and be done with it.  Not worth the price difference to buy an upper, new bolt, and magazines.  Just have two guns.

Here you go...with free shipping.

https://www.sportsmansoutdoorsuperstore.com/products2.cfm/ID/168616

Edited December 22, 2019 by Hozzie

[Erich]

If you are looking at the conversion bolt mentioned, they do work. Last time I fired one was in the early 80's in an M16 on an air force base range the few years uncle sam was using them. They havent changed since them.

[1gewehr]

CMMG makes an excellent drop-in conversion.  If you look around you can usually find them on sale somewhere.  

As stated above, it's a five-second switch.  Reasonably accurate and reliable.  Nothing to change on your rifle.

Designed by the brilliant Max Atchison in the late 70's.  Every AR owner should have one.

[79troublehead]

I've got one I use in an AR pistol I built. Good squirrel gun with a brace.  5.56 out of a 10" is painful.

[DBTN]

Your best option would be to get a dedicated 22 upper or a dedicated AR upper that you exclusively run the conversion kit in.  Nordic components makes a great upper for a dedicated 22

[Grayfox54]

Well, its winter, I can't go out to play, I'm bored and all kinds of strange ideas are running through my mind. 

These things show up on Armslist every now and then. I think I'll just wait until another one pops up and make a decision then. 

[swim615]

I have a cmmg bolt, charging handle, & mag only conversion. Don't use it anymore. Bought it used on here years ago. Only used it a few times in a m&p15 to. Worked well, but was consurned with the extra cleaning.  I have a sig p522 with brace that I really like & shoot  now. Not for sale. May use it again someday.

Edited December 23, 2019 by swim615

[DL126]

Dedicated uppers are the route I chose.
The wife and I now have 3 of them.

2 from these guys

1 assembled from parts from these fine folks.

[TomInMN]

On 12/21/2019 at 5:50 PM, Grayfox54 said:

I'm thinking about getting a .22LR conversion kit for my M&P-15. I know nothing about them. Please educate me. 

PSA has an M&P 15-22 with optic and case on sale for about $320 if that's convenient for you.

Edited December 26, 2019 by TomInMN
Clarity

[Pickaroon]

2 drawbacks to conversions are possible leading of your gas port and poor accuracy due to not having a 1-16 twist barrel. That said, the CMMG kit at RTB is really good.