Tuning 56TH cocking & stock position

It is not a big deal, as I can manually pull it back into the proper battery position, after cocking, and before firing, but my 56TH doesn't position itself property at the back of the stock before firing, and after cocking any more. I assume the rubber friction washer on the back/main locking lug is worn out and needs to be replaced.

If you have any thoughts or experience relative to this, I would appreciate hearing from you.

To summarize, upon cocking, the trigger moves to immediately adjacent to the front of the trigger guard, instead of the proper position center trigger guard. I manually slide it back and all is good.

Thanks.

DZ