Comes with 2 barrels. one in .177 bb gun cal. & one is 22 cal.
scopes junk. spring power air rifles are real hard on scopes. pellet rifle scope will be rated for pellet rifle & a good one aint cheap.. You shoot iron sights so just junk the scope
http://www.walmart.com/ip/Beeman-Dua...Scope/16686245
it's out of stock online. Your local walmart should have one or more in store