For a 22 the plastic will be good. Its a light weight RDS with a good rep for accuracy and holding zero. I have heard not to over tighten the locking set screws on the plastic models as it may crack the body. The metal C-mores are solid built and what I prefer on my carbine. easy to use, easy to swap diodes and easy to change batteries. Few negative things about them....mostly from people who have used the chicom clone knock offs from china. You can get a cheap knock off for $40. I met a guy with one that he said he bought at a reputable store. near as we can tell an employee must have swapped it out for a real one. It was easy to spot as a fake if you have seen and used a real one. Real ones have hand engraved serial numbers and the hardware is allen key not philips. the chicoms may have started using those by now.