Have some fun with it! DO google "umarex gauntlet baffles" or such, Many many options out there at value prices. Research QB78's , that is your trigger and can be really outstanding. You might enjoy the "plunger mod" for the trigger, I went super light single stage as in ounces and still pases a drop test.Cocking should be able to be done with your thumb on the back of receiver and one finger or something is amiss. My neighbor had pulled so hard (likely pulling to the side also?) he slightly bent the bolt, one precision ( LOL ) smack with a hammer and one finger cocking. This bent bolt was common on some years of QB, think Golden Joe Troller. A lot of your noise may be due to being over sprung? And with slight work they fit right in an QB stock saving a lot of weight.
Not sure on GEN2 but the 1st NEEDED the ABRUPT edge in the chamber edges knocked down.
Put another $25 and 25 minutes into it and it will still be long but a value rifle.
View attachment 355737 John