Had to find out
Well since my post regarding the Umarex M4 met with some appearance vs functionality critisizem I thought I would just buy the 15-22 also. Now i agree the Umarex forward assist isn't functional but my 15-22 doesn't even have one. I guess thats how they solved that problem. The 15-22 does have a functioning bolt catch which is a nice feature, and the bolt comes out almost like a real AR. After shooting both for a couple of weeks, I have yet to have a feeding or ejecting failure on either. I like them both and wouldn't hesitate to recomend either one. What I am now looking at is the ISSC MK22. I see a lot of earlier problems with inner bolt strippings and a picture of a broken stock henge that was made of some kind of pot metal. The one I looked at had a henge made from what appeared to be some kind of plastic. Gun was labled as a "Dealer Demo" so it was used. I would hope to think it functioned without problems. Tell me what you think. I do listen!!
Life member NRA