Production: 1981‐1988

• Safe Action^®System
• Black and non reflective nitration finish
• No finger grooves
• Pebbles texture
• Polygonal barrel profile
• No mounting rail

Production: 1988‐1998

• Safe Action^®System
• Black and non reflective nitration finish
• No finger grooves
• Polygonal barrel profile
• No mounting rail

Production: 1998–ongoing
• Safe Action^®System
• Black and non reflective nitration finish
• Finger grooves
• Polygonal barrel profile
• Mounting rail

Production: 2009–ongoing
• Safe Action^®System
• Black and non reflective nitration finish
• Finger grooves
• RTF – rough textured frame
• Polygonal barrel profile
• Mounting rail
• Reversible magazine catch
• Beavertail backstraps
• Dual recoil spring

Production: 2017–ongoing
• Safe Action^®System
• nDLC finish
• No finger grooves
• RTF – rough textured frame
• GLOCK Marksman Barrel
• Mounting rail
• Reversible magazine catch
• Ambidextrous slide stop lever
• Front serrations
• Beavertail backstraps
• Dual recoil spring
• Enlarged magazine floor plate
• Flared magwell