Likewise if you need breech and the one you want isn't available.....get the one that is and order the bolt you need from Melon.
The other thing is, I find loading a .22 cal pellet into the breech much easier than the .177's.
2289.....is a carbine, nicer pump handle and is .22....I think they come.with the 10 inch barrel....just my .02
I bit, and bought the Bug-out, today. I'll probably end up trying .177 at some point, but since I already have some .22 pellets, I figure I can have fun with it right away.I like the look of that 24" barrel. Seems balanced. I'll want a TKO on mine, so I might drop it down to 18" to keep the length down... I dunno.