Are they still in use? Have they had problems?
Squantos mentioned he heard about some teething problems, some bad mags and cracked mag well, if I remember correctly.
The magazines were of plastic as I recall, maybe not the greatest material considering the way some feds toss their hardware around.
Some of the FBI guns have actually been semis, or fitted with 2-shot burst groups rather than full auto, probably not a bad idea considering the few occasions some agents get to practice. But I recall news photos of feds with *MP five and dimes* guarding the J. Edgar Hoover building at one of the periods of heightened awareness. So far as I know, noone stole the FBI headquarters, so I guess the bad guys were very, very impressed.
-archy-/-