I own two 9mm carbines; The Hi-Point, and The Ruger PC-9. I have a low power "shotgun" scope on the Hi-Point and a Leupold/Gilmore LG-35 red dot on the Ruger. Rule #1 for optics; you can't get a quality optical instrument cheap. PERIOD. If you don't want to spend the money on a good one, don't get one at all. Spending $50 on a POS is worse than putting a match to $50. All that being said, if I had it to do over again, I wouldn't scope a 9mm carbine. For any shooting I do, pinpoint accuracy is a factor. Otherwise why shoot if accuracy isn't important. I am not an armchair commando, so my shooting consists of shooting junk, paper targets, and coyotes. I definitely want to hit them, and preferably in the right spot. Think about this, you are out plinking and spy a beer can at 100 yards. Your red dot completely covers the can at that range. You can't even see it. At 100 yards, the dot will cover most of a jackrabbit. As far as the scope goes, I can see putting something like a 4x or a variable on it, but the low power scope for me isn't worth it. I have read all the stuff about putting everything in the same plane and all that, but for me it doesn't work out. A good peep sight is better for me.