There is quite alot of differance.The Followers I bought from tapco,with the springs set,verses the Grn Followers I purchased from 1 of our own,504IPR,had a huge differance in HARDNESS/FIT/LACK OF OVER FLOW-LIKE OUT OF A POUR MOLD..Mike's followers has been the BEST followers I have found,I have been removing all of the Tapco grn followers due to their extra material that needs to be removed before they fit correctly,or slide in the mag without hanging up..The tapco grn folowers also are of a softer material,like getting a soft plastic mag,or a mag made of very hard plastic,with no over flow,etc.The tapco followers are even of a differant color,if there was not any other's to choose from,then a trimmed tapco grn follower would have to do,but since we do have a choice,then my Money goes to our own member 504IPR..I don't know the link to him,but for .75 a piece,you just can't go wrong..email him at (
[email protected]).75ea,free shipping w/30..