Parts # 9 & 10 on the Marlin 795 Exploded View. The Marlin Detent & Detent Spring come together as a kit. If your going to replace one then it's best to replace both of them at the same time. This is an original factory replacement part from Marlin. Replacing your worn out Marlin Detent & Detent Spring will reduce malfunctions and improve reliability of your firearm. Factory replacement parts are manufactured to the exact same specifications and tolerances and use the same manufacturing materials as the original parts.