The fit between the upper and lower receiver (the $1250 metal receiver)is not as tight as you would expect by comparing to the WA one (which is exceptionally tight).
The good thing is (a) it works and (b) real steel m4/ar15/m16 do have some play between upper and lower receiver as well.
The bad thing is of course it rattles!!
There are a number of methods (some with side effects) ussed in real steel to fix the problem, i.e. o-ring, the "accu-something" or epoxy bed the upper and lower receiver...In other words you could either fix it like real steel or leave it as it is
[ 本帖最後由 maverick0 於 30-8-2008 10:48 編輯 ]