I recently got back into shooting after a long (40 year) layoff. I have 2 Glocks (17, 19) that I think are great. The best thing I like about them is they go bang everytime and relatively simple to maintain. Costwise they were in the middle of the dollars I was wanting spend. Now I'm thinking of getting a AR type rifle for HD, target shooting, etc. I would like to find a rifle with same kind of traits. Bugetwise I'm looking at spending around $1000.00. And being a general tightwad, I'll probably go for a used gun. I'm sure there won't be total agreement, LOL, but would appreciate some suggestions on what to get and caliber. Is there a rifle out there that could be considered kind of the Glock of rifles?