OEM 2x20mm Bolt Catch/Latch Spring for Airsoft AEG Rifles

"The spring I received doesn't look like the one in the image and while it works for the most part it is too large and ends up not wanting to allow my mock bolt to slide all the way forward. I have an Avengers M4 and it works pretty okay I suppose

"I thought I was naive for ordering this as a replacement for my VFC mock bolt since upon opening my package, it was immediately apparent this was too big.
However, after measuring another VFC, I found that it is 2.5 x 22.9mm. THIS one should work, right? Nope. This is ACTUALLY 5.28mm x 31.5mm. Not even close to the advertised measurements. Both of the ones I ordered are the same, large size. Why even bother listing measurements if they’re wrong? Just make people guess the size by the picture, lol.