Ben86:
When I had my upgrade done the price was (I believe) $150 for the slide refinish/external sight package and an optional mirror barrel polish/mirror feed ramp polish for an additional $5 ea. (includes returning shipping).
My thinking was that a mirror polished feed ramp (for $5) is never a bad thing, and the mirror polished barrel for another $5 sounded fair, and gives the portion of the barrel exposed a nice look. As I said they are optional.
The rear sight is NOT a night sight, but a conventional one, intentionally ramp reversed so that in a crisis where both hands might not be available for charging the chamber it can be done by using one hand, and the friction of the reversed ramp against another object (say the pants leg)..
The front sight is a Trijicon night sight and works great.
You can call Phillip or Jenny (Woodell) @ 1-803-528-8709 if you have the interest and one of them will walk you thru the process, plus current delay time. It only took two weeks for my turnaround, but I think the package has become very popular with LCP owners, and that might be longer now.
Innovative Arms is a small family run business, and they do top quality work.
Best Wishes,
Jesse
P.S. And after you get your LCP like you want it, start saving for the LCP on steroids (LC9).. You just know you're gonna want one.