This fine wire stapler has all the features you want. It is easy and comfortable to use, easy to maintain, and long lasting. This tool uses 3/8" crown width 22 Ga. Duo-Fast 31 series staples, 1/4" - 5/8" lengths. Magazine capacity: 180 staples. Tool weight: 1.71 lbs.
Repair Chart: F1B 31-16 Schematic