?How does the "Standard Rear Pad for P90" differ from the stock itself?
This is an addition to the P90 stock: the pad itself is not a stock and works only with it.
?What parameters does the "Standard Rear Pad for P90" improve?
Part effects: ergonomics +2, vertical recoil +2, horizontal recoil +4.
?Does the "Standard Rear Pad for P90" help with recoil control?
Yes: vertical recoil is reduced by 2, horizontal by 4.
?What is the "Standard Rear Pad for P90" installed on?
Fits on the P90 stock.