Not sure what you are putting this on, but when I hear up to 100 yards, I immediately think dot sight. I have a BSA red dot which is ok. I also am thinking about keeping the doorbuster deal Truglo 1 x 30 dual color dot I just picked up. Up to 100 yards does not require expensive. If you want to advance beyond what I propose, I would throw in any of the good 2x or 3x sights out there. The last think I want on an under 200 yard gun is a variable.

100 max = 1x or 2x
150 max = 2x - 4x
200 max = 4x - 6x

Just my opinion. I have made lots of 0 - 350 yard shots with a Weaver(1960's era) 4x scope. I made those shots in the 90's.. Dad's rifle. I never felt cheated, but it was all I knew at the time.