am looking for: reliability, durability accuracy which is closer to a real AR? i bought this gun to train for the range in boot camp. I bought the MnP22 already, but then i saw a metal CCMG-a4 (mine is polymer). It is not a mix-matched rifle, both the upper and lower are from ccmg. i am wondering (1)how this rifle differs from mine, (2)which would you prefer to own?? and (3)which is most like an AR?? thanks. EDIT: so are you saying that even a .22cal AR upper like on the CMMG does not field strip the same as a .223 upper? because i would only return my MP22 if the CMMG is more realistic in field stripping, to pratice for when i will be shooting/stripping the M16 in boot camp. thanks.