I believe that the Tm's are all compatible, I've switched between mine with no issues, & I've used kjw mags in TM's too.
That said, picked up a pair of mags on eBay a while back, described as "4.3 mags", all looked great & they were holding gas, only thing I didn't do was try them in the guns........fast forward a couple of months & it occurs to me I need the mags to kit out a couple of friends who are up for a game, dig out the new ones only to find that while they're identical at first glance, they don't fit 5.1 or 4.3, wtf & the eBay knob won't even respond to a pm, not that I expect a refund, my bad for leaving then so long, but ffs tell me what they will fit 🤔