While it may seem counterintuitive the make the PS90 longer - this stock extension actually improves the balance of the weapon, and it gives you a bit more space between your eye and your optic.
In addition, some members use it to help make a PS90 California legal. I will admit, however, that since I do not live in California, I do not know the ins and outs of the law, and I do not know what other changes would be necessary to make a PS90 California legal...
Anyway - this stock extension is forsale for $45 shipped. Please contact me at goldfishpanda@hotmail.com if you are interested.
