.556 to .22 ARC conversion?

[ryans1010]

Im fairly new to the AR platform, but purchased my AR15 some time back from palmetto state. I built it myself, both upper and lower, and got it looked over by my local gun store to make sure its all good. Ive been happily shooting it now for some time but am interested in the .22 ARC for coyotes hunting on my property. Mostly in the effective range it boasts.
From research I cannot find a definitive answer on whether I can buy a .22 ARC upper and install it on my .556 lower! Is this possible?
If so I've also read the magazine is different so is there a solution for that?
Thanks in advance!

 

[Caseknife]

AR-15 lowers are all essentially the same. The 22 ARC upper would probably come with the bolt carrier group and a magazine. Haven't done it, but more than likely doable.

 

[rabbithuntr]

What effective range are you looking for? 223 will get you to over 400 yards with the right bullet, 22 arc will probably gain about 150 yards.
If you are swapping the entire upper then the only other thing you need is a magazine , I’ve heard the Geissele ones are some of the best.

 

[longrangelead]

6.5 Grendel mags

 

[ryans1010]

What effective range are you looking for? 223 will get you to over 400 yards with the right bullet, 22 arc will probably gain about 150 yards.
If you are swapping the entire upper then the only other thing you need is a magazine , I’ve heard the Geissele ones are some of the best.

Im just looking to add another round to my shelf. More for fun! I have a bolt action 223 already just thought it would be cool to havw another upper in another round I can switch to for range time and hunting!
The magazine was honestly my biggest hangup. Switching the whole upper was the easiest thing to do get this round without having to go through the background check and wait again. Just for ease of shipping something right to my door. Then id mount its own scope on it.
Do you know what mag from geissele?

 

[mtnbound]

Im fairly new to the AR platform, but purchased my AR15 some time back from palmetto state. I built it myself, both upper and lower, and got it looked over by my local gun store to make sure its all good. Ive been happily shooting it now for some time but am interested in the .22 ARC for coyotes hunting on my property. Mostly in the effective range it boasts.
From research I cannot find a definitive answer on whether I can buy a .22 ARC upper and install it on my .556 lower! Is this possible?
If so I've also read the magazine is different so is there a solution for that?
Thanks in advance!

22ARC Complete Upper | Shop Now

The foundation of this all new complete 22ARC upper from ODIN Works is a forged or Billet upper receiver bearing the ODIN name.

www.odinworks.com

 

[rabbithuntr]

Im just looking to add another round to my shelf. More for fun! I have a bolt action 223 already just thought it would be cool to havw another upper in another round I can switch to for range time and hunting!
The magazine was honestly my biggest hangup. Switching the whole upper was the easiest thing to do get this round without having to go through the background check and wait again. Just for ease of shipping something right to my door. Then id mount its own scope on it.
Do you know what mag from geissele?

Their ICM magazines in different capacities