Just for the heck of it.
P90
5.7mm SUB-MACHINE GUN
Technical Data:
Operation: Blowback mechanism firing from closed breech
Overall Length: 19.7 in.
Width: 2.2 in.
Height with Optical Sight: 8.3 in.
Weight with Loaded Magazine: 6.6 lbs.
Magazine Capacity: 50 rds
Firing Modes: Single shot, full automatic
Cyclic Rate of Fire: 900 rpm
Maximum Effective Range: 200m
SS190 Ammunition:
Caliber: 5.7mm
Weight: 93 grains
Projectile Weight: 31 grains
Recoil Impulse: 0.44 lb/s
Muzzle Velocity: 2,346 fps
Perforation at 200m: Body Armor Kevlar >48 plies of Kevlar PASGT helmet
Accuracy with P90
(7.9 in.) (10 shots)
Suggested Price: (Law Enforcement agencies only- 5.7 x 28 caliber weapons are not available to the general public)
P90STD: $1,250
P90STD Auto: $1,350
Page last updated on: 03-07-2001
Okay, if you want REAL innovation...I give you the HK G-11 caseless rifle!
Caliber: 4.7 mm caseless
Action: Gas operated, rotating breech
Overall length: 750 mm
Barrel length: 540 mm
Weigth: 3.6 kg empty
Magazine capacity: 50 or 45 rds
It put out a three-shot burst at 3,000 rounds per minute, since it had no need of an extraction system. The rounds were totally encased in their propellant, which was solid. The magazine was positioned on top of the barrel, and the piece was cocked by the knob on the buttstock. It used a 3x scope.
For a while, it looked like the Bundeswher would adopt it, but it was put aside after the Wall fell, and more conventional designs were pursued. Don't ask me why.
It was also looked at as an M16 replacement, back in the '80s.