What exaclty is a ball detent?

[orryn]

See subject for question.

[C4pyro]

It is the piece...can be a rubber nubbin or some other type of material...that holds the ball in the breach of the gun so it does not roll down the barrel.

[Batman]

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Right. like ony my model 98 u must cock back the u will see a little orange hill like thing that goes down and springs back up