The P89 is out of production. No MSRP available.
No more than any other 9mm Parabellum pistol on the market. A gun's only as powerful as the cartridge it fires allows it to be.
p90
You can request a manual from Ruger on their web site.
Anywhere between $250 - $350. Might even be able to find them for less, on occasion. If you get a P89, and not a P89 MKII, try to find out if it was turned in for the recall which was applied to the P89 pistols, where the safety was replaced.
$400-$500
"about 300.00 american" i am getting the ruger 9mm p89 with 3 mags, holster, case, cleaning supplies, and ammo for that price...
100-300 or so
50-500 usd
The pistol in good condition averages about $300. Value of the laser depends on the model.
100-350 or so
100-300
50-350 usd