The GLOCK 34 Gen5 MOS features an extended barrel and greater slide dimensions, making it a favorite among sport shooting competitors, GLOCK 34 Gen5 in MOS Configuration.

Design enhancements include the GLOCK Marksman Barrel (GMB) which delivers increased accuracy with enhanced polygonal rifling and an improved barrel crown, no finger grooves, ambidextrous slide stop levers for better versatility and control.