I have a 17 y/o daughter, 15 y/o son and 9 y/o son. I have bought and assembled each of them a PSA 5.56 with 16 inch upper. Looking for recommendations for optics. Mainly looking for something they could plink with at the range out to 500 yards and double as a hunting optic for deer where the average shot is probably less than 50 yards. I have done some reading and was leaning toward a SWFA 6x and a Holosun mounted on a cant, but thought maybe some of you guys with kids or grandkids could give me some input before I pulled the trigger. I learned on iron sights, but I think optics are a better route, especially for kids due to the shortened learning curve and thus quicker rewards. Would like to keep it down to no more than $500 per rifle. Any input would be greatly appreciated.