Weihrauch HW97/77 MAXI Tuning Kit

All the benefits of a standard TbT kit, but custom fitted to the TbT Premium Spring!

A choice of Full power which gives up to 20j / 15ft-lb, or the new UK spec kit which will give power of sub 16j / 12ft-lb in most cases, though this is not guaranteed.

Comes with fitted delrin spring guide with a top hat, slip washer and 2 preload washers. This kit also comes with Lithium based Molybdenum Disulphide grease and abrasive paper as well as instructions for fitting kit and piston sleeve.

This kit may increase power, chrono required! Full instructions on spring shortening available in “Instructions”

Available from Stock