“when installing the mag release make sure the first part is behind the spring where the mag goes you will see a thin piece of metal wire that's the spring. I installed this mag release do not buy this mag release if you have put any type of upgrade kit in the vector (doesn't matter what brand). when you have the upgrade kit in the gun it shakes more and that caused the mag release to unlock your mag when your shooting. the mag will slowly fall out and your vector will stop shooting . when not shooting the gun the mag release it works great definitely recommend if using basic vector v2”