POS. even if its all you could afford, STILL DONT go for it. It is just a 702plinkster in a plastic clamshell held together with #4 screws. I hate mine. HATE IT. It is nearly impossible to reassemble after cleaning without bending the recoil spring. it really is a horrible idea poorly executed.
it is not the same in any way other than it sends a projectile down a barrel. The action is not the same, the mags are nothing alike, the design is 100% different. Think "10/22" wrapped in between two plastic AR-looking things. Its like a Fiero with the Lambo kit.
I hope the guy at Mossburg who designed it lost his job.