Originally Posted by HOGLEG
Here's a quote from the add:
"Colt AR15 22 LR magazines. These Colt/Umarex magazines will fit all four Umarex M4, M16 models in 22 LR."
By the description, I think you are good to go!
Now, should I buy some mags before I find the gun??
I wonder if they would work on the M&P 15-22?