The CARVER Mount CMore Model has been master crafted to fit any of the following Glock Models including Gen 3's, Gen 4's and Gen 5's: G17, G17L, G17C, G22, G22C, G24, G24C, G31, G31C, G34, G35 and G37. All mounts have interchangable parts to allow easy conversion to other CARVER Mount models. NOTE: Lowering the ejection port by .1000" is recommended for reliable ejection to allow ample space to eject the spent brass. Installation is easy and should not require gunsmith assistance. All parts of this mount are CNC machined from high quality aircraft aluminum. This model is the most popular Glock scope mount on the market.