Geissele Automatics Trigger Fitting Pin Features The Geissele Automatics Trigger Fitting Pin is machined from steel to the exact same dimensions as a standard AR-15 and AR-308 trigger and hammer pin so it drops into the same holes without modification. During removal the pin helps press an existing trigger pin out in a more controlled fashion than tapping it blind with a punch reducing the risk of marring the receiver. During installation the fitting pin acts as a slave pin holding the trigger disconnector hammer and their springs in proper alignment while the builder lines up the permanent pins. This staged approach keeps small spring-loaded parts from shifting or popping free mid-install a common frustration during AR trigger work. At 3.300 inches long and 0.150 inches wide the fitting pin is sized for easy handling even in tight receiver wells and at just 0.010 lb it adds virtually nothing to a range bag or bench kit. It is compatible across both AR-15 and AR-308 platforms making it a useful addition for anyone who services multiple rifle builds. Built and finished in the USA for repeated use this fitting pin is the kind of inexpensive specialty tool that saves real time once an armorer or home builder has one on hand. Any shooter installing a Geissele trigger or swapping components on an AR-pattern rifle benefits from keeping one in the toolbox. Geissele Automatics Trigger Fitting Pin Specifications Manufacturer: Geissele Automatics Model: Trigger Fitting Pin Type: Pin Material: Steel Length: 3.300 Width: 0.150 Height: 0.780 Weight: 0.010 lb Compatible Hosts: AR-15 AR-308 Quantity: 1 Available At: GrabAGun