The UK's Most Popular Tuning Drop In Kit from Nick Stanning and Tin Bum for the Spring Powered Diana 48, 52 and 54 Series of Sidelever Air Rifles.

The TbT Standard guide set will work with your existing spring to reduce spring twang, vibration and recoil at a stroke. Guides that fit the spring properly keep it under control during the firing cycle prevent it from rattling around, all metal to metal contact is eliminated. The kit includes a rear guide, top hat and slip washer to reduce torsional recoil, preload washers to allow some control over power output, standard molybdenum grease and a TbT sticker for your rifle. With the addition of a small amount of optional Bum-Slide hi moly paste, this will give you many thousands of quiet, maintenance free shots between services.

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 the drop in kit.