This robust. patented headless pinner features an adjust-free magazine that uses the full range of headless-pins through 1-3/16". 

Features include:                                                                              Powerful drive  to penetrate the hardest woods                        Compact and lightweight design for fatigue-free use               Patented magazine design eliminates need to adjust for pin lengths Double safety trigger                                                                          Narrow nose design reaches tight areas and corners

Specifications:                                                                                     Weight:  2.1 Lbs (1 Kg)                                                                           Operating Pressure:  6 - 100 psi (4 - 7 bar)                                   Fasteners:  23 gauge Headless Pins, 3/8" through 1-3/16"