I have here a Hi Point 9mm carbine and a Ram Line Exactor pistol with optical sights on them. The Ram Line has an inexpensive BSA red dot that works fabuously. The Hi Point has an NCStar 4 reticle sight that is compact and easy to see in even the brightest sunshine. The NCStar so far has stayed absolutely in place and deadnuts accurate through about 1000 rounds of fire. The cost??? $65.00 and it has a lifetime warranty.