Weapon Bug M2010 ESR

I'm having a problem with the M2010 ESR weapon.

When I customize it, I remove the muzzle brake to add another component within the 100 points allowed. Once everything is changed correctly, I log into the game and see that the change hasn't saved. It's very annoying to keep modifying the weapon to my liking and needs, game after game. It seems to be a bug. 

You can watch the video for a better understanding.

https://youtu.be/qzr9blKRwgE

Could you fix it?