This is for the GLOCK 21SF with an AMBI magazine release. This WILL NOT turn your existing non-ambi release frame into an ambi release frame.
If you are unsure if this will fit your firearm, give us a call or shoot us an email. Glockmeister will not be responsible for initial or return shipping charges if this is ordered in error.
Glock Mag Catch Spring Flat G21SF Ambi Only