Last edited Tue Jun 7, 2016, 04:14 PM - Edit history (2)
          F.B.I. Request For Proposals Requirements (for new 9mm)
BARREL LENGTH  Full size must be 4.26″ to 5.20″; Compact size must be 3.75″ to 4.25″
HEIGHT  Full size no more than 6.0″; Compact between 4.75″ to 5.6″
MAGAZINE CAPACITY  Full size at least 16 rounds; Compact at least 14 rounds
MAGAZINE DISCONNECT SAFETY  None allowed
COCKING  Only by trigger pull
TRIGGER  Firing pin/Striker fired only
TRIGGER PULL  4.5 lbs. to 6 lbs.
MAGAZINE RELEASE  Laterally pushed, no levers
MANUAL EXTERNAL SAFETY  None allowed
DECOCKING LEVER  None allowed
GRIP SAFETY  None allowed
FRAME/RECEIVER  No finger grooves allowed, must have (3) sizes  small, medium, large; can be accomplished through inserts or different frame sizes.
PICATINNY RAIL  Required for pistol mounted lights.
I didn't mind a decocker/safety on my DA/SA M9/92F, but a magazine disconnect wasn't warranted (S&W were the only ones pushing them during the early semi-auto craze). Tough call there.
Grip safeties are cool on 1911s, again that's a SA, and it is sort of redundant to the thumb safety. Not a biggie either way if done right.
Firing pin blocks are just about a given these days, so no issues there.
Loaded chamber indicator? OK, the ones I have seen aren't very definitive, but fairly unobtrusive...I know I wouldn't rely on that to know if a gun is truly loaded.
Trigger pull that is consistent, and in the 7-8# range is very nice. 
I find I liked the decockers on a Walther P99 to uncock the striker safely, and to lower the hammer on cocked pistols like the DA/SAs (Sig, Beretta). Also a nice feature.
ETA: Anyway - I think it will be VERY hard to get the govt to mandate feature standards when their own agencies do not want them.