Quote:
Originally Posted by cyphertext
The Sport II is a great first AR-15!
Let's answer your questions...
1. Gas operated means that there is a port where the gasses are bled off from the barrel and routed back to push the bolt back. The port sits under the gas block, which is part of the front sight on the Sport II.
Blow back is simply operated by recoil. The .22lr works in this manner.
2. Yes, the front sights are adjustable, but not in the sense of folding them out of the way of the scope. However, with a 4x or higher magnification, the front sight will ghost out and not be seen in the scope.
3. Lots of ammo available. Check with your range first to insure they do not have any restrictions... if no restrictions, FMJ in 55 gr or 62 gr that is brass cased and from a reputable manufacturer will work.
4. I recommend that you read the manual and clean the rifle. After that, put at least 500 rounds down range before you start reading about modifying the rifle.
Good Luck!
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Excellent suggestions and info. Only thing I would add, is buy extra mags. I've got 4 that I normally use at the range, plus 6 extra sitting in a drawer at the house. And I plan on getting more.
As to a scope, got a 3x9 mounted on mine. At the 3x setting, there is no sign of the front sight. If you go with a Red Dot, the front sight will be visible. However, that setup is the way it's designed to be.