The Five-Seven:The P90 entered service in 1994. It is a selective fire, straight blowback-operated firearm with semi-automatic and fully automatic firing modes. It is fully ambidextrous, with an ambidextrous fire selector and charging handle, and downward ejection of spent cases. The P90 is built in a unique bullpup configuration that places the 50-round translucent magazine above the firearm, parallel to the barrel (with the rounds perpendicular to the barrel)
Is it pistol or rifle ammo for the purposes U are stating? Don't know what to say. The rifle came first - but it can be used in either a rifle or pistol. U also have 9mm/40cal/45ACP carbines now. And, those are pistol cartridges.Production history: Designed 2000
ShipWreck said:Actually, the 5.7 ammo was designed for the P90 submachine gun first. After the P90 was design and in service, the Five-Seven handgun was created. The ammo obviously works in both.