I own the CZ 453, which is the CZ 452 with the set trigger. In other words, same rifle but with the trigger group from CZ's center fire rifles.
The five round magazines are steel and are nearly flush, as Gudis says. You can also get 10-round plastic magazines. They work well.
The bolt cycles very well.
I don't use the CZ scope mounts. I've got a 40 mm objective scope (Nikon Monarch), but I don't know which scope mounting hardware I've got. It's whichever Bob told me to get. I go to the gun counter, tell Bob which gun and which scope I want, Bob tells me whether I'm nuts or not, and then he tells me which parts I want to put them all together, and puts them all together for me. What rings do I have? I haven't a clue. I just know they're not the CZ rings.
I just hate "rimfire" scopes. So it's worth it to me to put up with some of the oddness of mounting a centerfire scope on a rimfire.
It takes a shooting sling really well. The sling mounts are not just for looks. They take the pressure of a shooting sling just fine.
It feeds anything in LR (and I've fed it every brand I could get my hands on).
It's a good shooter. At 50 yards, I feed it Wolf MT. Somewhere around here I've got a quarter-sized group I made, slow-fire prone, 10 shots from 50 yards. That's not benched.
At 25 yards, I feed it Federal Bulk. I shoot 230 (out of 250) on Fred's Quick and Dirty AQT all the time with that gun, and once I cracked 240 with it.
I've never shot it from a bench, but a bench rest guy once did. He made a ragged hole with it at 50 yards with Wolf MT. It was pretty.
It's not so expensive that you'd be afraid to take it hunting. It's a fine rabbit rifle, but be sure you don't over scope it, magnification-wise, if you're going to go hunting.
This is my go-to gun for riflery training. It's the rifle I use to practice breathing, trigger control, prone, sitting, kneeling, offhand, sling use, all the basics of marksmanship. You just can't go wrong with this one.
By the way, the American has no iron sites, so until you have the money for the scope saved up, you won't be shooting it at anything very far away.