This are High Quality low tolerance Spring guider made by CNC.
Fit to Weihrauch: HW77 HW77K HW97 HW97K
Lots of other spring guider kit coming soon.
Please note spring it’s not included just to show how will fit.
Warning:
1: Fitting any of our spring guiders to your rifle may change the muzzle energy. 
You must check the legal limit allowed in your country. 
2: You should thoroughly test your rifle after fitting. 
3: If in any doubt, ask a qualified person to carry out the work. 
4: Care and attention must be taken during the  installation