Gen4 subcompact introduced the interchangeable backstrap system, dual recoil spring assembly, reversible magazine catch, and RTF4 grip texture. Removed the finger grooves of Gen3. The Gen4 G26 became the most refined pre-Gen5 subcompact carry Glock. Type: Semi-Automatic Pistol Action: Striker-Fired Caliber: 9mm Luger Capacity: 10 Year introduced: 2010, Austria Weight: 19.75 oz Overall length: 6.29" Status: Discontinued Intended use: concealed carry, backup, off-duty