[Jeasen]

I am new to this list and I am hoping that someone here would be kind enough to help me.

I went to use this gun the other day and the hammer would not stay cocked back. I had the guy at the shooting range look at it and he said it needed to go to a gunsmith for repair.

Again it is a Sportsman Model 999 22 Cal. by H&R Inc. Serial Number is AE96176. It is a top break gun.

When I got home I took off the grips and noted that there was a loose piece of plastic near the bottom of the hammer. I was surprised to see plastic and broken plastic at that????

I downloaded a schematic and parts list for the gun. The only plastic part I could find was a mainspring & guide assembly, plastic head so I am assuming that is what I need? It also listed a mainspring, guide assembly, steel.

Is the steel interchangeable with the plastic part? Would I be able to change this part myself? Or am I not even on the right track?

All help would be appreciated.

Thanks, Jeasen