The best replacement for 3x magnifier is 5x.

The best alternatives to 3x magnifier are rated as following:
★★★★★  5x
★★  6x

Your alternative for 3x magnifier is not listed? Suggest!
Speaking about 3x magnifier, one probably shouldn't forget about aimpoint.

Other search terms related to 3x magnifier and their ratings are:
★★★★★ aimpoint
★★★★★ t1
★★ eotech
★ aimpoint pro
★ flip mount for aimpoint
★ holosight
You have in mind a companion for 3x magnifier and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of 3x magnifier in all years. Click on graph for more.
3x magnifier
5x
6x