Shop › GEISSELE SPER 3 GUN MIL-SPC PIN S3G GEISSELE SPER 3 GUN MIL-SPC PIN S3G $245.00 Geissele Automatics Trigger, Super 3 Gun Trigger, Mil-Spec Pin Size 05-152 Quantity: Add To Cart Added! Geissele Automatics Trigger, Super 3 Gun Trigger, Mil-Spec Pin Size 05-152