Brownells Carrier Pivot Tube Slave Pin Features The Brownells Carrier Pivot Tube Slave Pin uses a tapered nose machined specifically to align the carrier and trigger plate on a Benelli M4 during reassembly. That taper guides the components into position so the carrier pivot tube can follow the slave pin through and seat correctly rather than fighting misaligned parts by feel. This kind of purpose-built alignment tool removes much of the trial and error that otherwise comes with reinstalling the fire control assembly. It is a small part that solves a specific recurring headache in Benelli M4 maintenance. Finished in silver the pin is sized to match Benelli M4 tolerances exactly so it slides through the carrier and trigger plate without binding. Its simple single-piece design means there is nothing to adjust or configure before use letting an armorer get straight to the reassembly step. Keeping a slave pin on hand speeds up routine maintenance and disassembly work on the M4 platform. For anyone servicing Benelli M4 shotguns regularly this pin is a practical addition to a cleaning and maintenance kit. Brownells Carrier Pivot Tube Slave Pin Specifications Manufacturer: Brownells Model: Carrier Pivot Tube Slave Pin for Benelli M4 Type: Assembly Tool Compatible Hosts: Benelli M4 Color: Silver Available At: GrabAGun