I assumed he was referring to one of the upper smaller parts, but on some of the pics of McMahon scissors, that looks the same as on mine, so it might actually still be OK.
Although not all parts move as easily as they should, it seems..
I'll add a pic later, that probably speaks louder than my words
Verkaufe traumhaftes McMahon MCR Power-Link Scissor Brake Set. Wer danach gesucht hat, weiß...,McMahon MCR Power-Link Scissor Brake /Syncros KLEIN Retro U-Brake in Baden-Württemberg - Eggenstein-Leopoldshafen
www.kleinanzeigen.de
Indeed with some obvious similarities which are even more obvious as this is purple too, but some clear differences as well.