Can I put a .556 upper on my 15-22?

[Austin0816]

I know that you can change out the uppers on the ar15's but I was wondering if you could do the same on the 15-22's

 

[Rob1]

AR15 to AR15. Yes

15-22 to 15-22. Yes.

AR15 to 15-22. NOPE.

15-22 to AR15. NOPE.

Rob.

 

[Majorlk]

S&W deliberately made the 15-22 lower's dimensions just different enough to prevent that.

 

[CrazyFingers]

I'm assuming you want to run a .223-to-.22LR conversion upper?
Nope, physically incompatible.
By design.

 

[Austin0816]

Okay thank you guys