TacFire Firing Pin Features The TacFire Firing Pin is machined from steel and finished in hard chrome a combination chosen for its corrosion resistance and smooth consistent function inside the bolt carrier group. Chambered for 5.56x45mm NATO this firing pin is built to fit AR15 and M16 platform rifles as well as the broader AR-15/M4 family of builds. A worn pitted or damaged factory firing pin can cause light primer strikes or inconsistent ignition so replacing it with a durable hard chrome pin helps restore reliable cycling. At 3.28 inches long the pin is sized to match factory specifications for a proper drop-in fit. Builders finishing a new AR-15 upper from scratch need a firing pin as one of the final internal components and this TacFire pin provides a straightforward affordable option to complete that build. Armorers performing routine maintenance on duty or range rifles can also use this part to swap out a worn pin during a parts refresh. At just 0.30 oz the firing pin adds negligible weight while playing a critical role in reliable ignition. For AR15/M16 builders and armorers needing a dependable replacement firing pin the TacFire Firing Pin is available for sale at GrabAGun. TacFire Firing Pin Specifications Manufacturer: TacFire Model: Firing Pin Caliber: 5.56x45mm NATO Material: Steel Finish: Chrome Length: 3.28 Compatible Hosts: AR15 / M16 Weight: 0.30 oz Available At: GrabAGun