Designed to precisely fit the following standard frame Glocks Generations 3 and 4 (9MM, 357 Sig, 40 S&W, 45 GAP): 
G17 
G17L 
G17MOS 
G18 
G22 
G24 
G31 
G34 
G34MOS 
G35 
G35MOS 
G37