Paslode Part # 501039 - Sequential Trigger Details: Sequential Trigger, to be used by the Paslode T250-F16 500970 Pneumatic 16 Gauge Straight Finish Nailer, Paslode S200-S16 501230 Pneumatic Stapler - Standard Crown and Paslode S200 W16 501265 Pneumatic Stapler - Wide Crown, Paslode Pneumatic F-250S, 500855 positive placement tool (Does not ship in original package)