standard magazine, top loading
Gauge: 13.5 | 14 Max fastener length: 1-1/4"
standard magazine, rear loading
Gauge: 13.5 | 14 Max fastener length: 2-1/2"
Gauge: 13,5 Max fastener length: 5/8"
standard magazine, side loading
Gauge: 15 Max fastener length: 2"