Depends on which shell you have as to how brittle they are. Agree with the battery statement not to mention how easy to clean today's loaders are that is why i still have four old revs I never use (use Rotors now). Plus you can only get $30 for one and if I am going to give them away I would rather just keep them like my Tippmann 98's can't get anything for them either.
Angel G7 Fly Black/Blue Fade Angel A4 MT Fly Gunmetal
Angel Dark G7 Fly Black/Blue Fade
Angel G7 Fly Ice / Blue Fade
Angel G7 Fly Black/Graphite Fade
Angel A1 SB
Angel A1 Black/Blue Fade
Bob Long Ripper 2