No one likes to ruin a trip to the range when something goes wrong with your rifle. The M5 Field Repair Kit features common parts that may rattle loose or break. Carry one in your range bag and always have what you need to get your rifle up and running again! Includes: Takedown Pin Detent (2) Takedown Pin Spring (2) Bolt Catch Spring (2) Bolt Catch Buffer Trigger/Hammer Pin Safety Selector Spring Safety Selector Detent Buffer Retainer Buffer Retainer Spring (2) Pistol Grip Screw Pistol Grip Lock Washer Trigger Spring Hammer Spring Disconnector Spring Nylon Tipped Tension Set Screw - 1/4-28 x 1/2 4-40 Set Screw (for threaded takedown pin detent hole) (2) Threaded Roll Pin (2)