Designed to allow you to use both captured and uncaptured Generation 3 guide rods in your Gen 4/5 Glock.
Fits the following models: G17, G19, G20, G21, G22, G23, G31, G32, G34, G35, G45
NOTE: The Gen5 G17/22 uses a longer guide rod than the Gen3 G17/22 so this product will not be compatible.