I know for a fact that Tokyo Marui guns do. I'd also imagine Maruzen and Classic Army do as well; but I personally haven't seen for myself. I've seen people advertise their gun as a TM, when in fact it's a clone. Most springers are copies internally of TM VSR system. I suppose some individuals feel that makes it close enough to call it something it isn't.
ďREALITY IS LIKE A STONE. TO MANY ITíS HARD AND COLD, THEY CANíT HUG IT OR EAT IT, IT ONLY FRUSTERATES THEM AND DOESNíT DO THEM MUCH GOOD. TO OTHERS ITíS STRONG AND DEPENDABLE, YOU CAN BUILD WITH IT, BUILD UPON IT, OR WORK WITH IT, ALSO USE IT TO SMASH PEOPLE IN THE FACE.Ē