Contains: Trigger and Hammer Pins (.154" diameter), (4) Retaining Screws, and Allen wrenches for secure trigger installation

Please NOTE: The external width of AR receivers varies in the trigger/hammer pin area, depending on the manufacturer. If the pins are too long for your receiver, you may shorten the pins a small amount by carefully filing material evenly from both ends of the pins. However, this is not required. Longer pins will not affect the function or performance of the rifle.