I have two .450 bushmaster uppers, one is a 16in rifle length and the other is a 10.5in pistol upper. They are amazing fun, and will knock down anything in North America. These two uppers also come with approximately 200rds of Hornady ballistic tip ammo. For the record, if you put the pistol upper on a rifle lower, the ATF willl come and shoot your dog. AKA, don't hit me up if you don't know basic laws.  

For reference, the .450 bushmaster round has approximately triple the energy of a .44 magnum out of the same barrel length which makes it an excellent hunting round. Good luck finding ammo but fortunately this comes with all you'll ever need.  

Package deal, very fair pricing so no low ballers. Trades considered but only if you list your trade in the inital message. If you ask if I'm interested in trades, I assume you're illiterate.