Unfortunately this adapter does not work with the Spectrum. There is a small difference with the adapter wither the corner next to the pusher rod. The rounded corner on this adapter blocks the pusher rod and keeps you from pulling the trigger. It is a shame because the stock 10 round magazine is laughable.
Works great in my Stryfe and even better in my Rapid Red no blaster cutting required but you will need an extended pusher arm or just do what i did and glue some foam from a dead dart onto your stock pusher to make it longer.
Gave this a try out in my Stryfe. Wasn't too impressed. You will need to cut out part of the forward tabs in your stryfe magwell, as your talon mags will get pretty scratched up with the position this adaptor puts it into. Just don't cut them too much though, as then the adaptor won't stay in. Also had a serious problem with jams. Nothing was wrong with the mag, as it worked in my other blasters, but it seemed like the mag was being squeezed to much, causing some jams in the. Not sure though. Overall, for my flywheel set ups, I'll stick with full lengths.