Combat Armory Magazine Release Catch Spring For Glock Gen3 17, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39 will not fit 21SF
Combat Armory machinist take pride in delivering the very best for our customers used by Military, Police, and Firearms enthusiasts