Tinbum Tuning – It don't mean a thing if it ain't got a spring!
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TbT PRO Kit. Spring Guides and Short Stroke to fit Weihrauch Beeman HW | eBay
TbT Air Rifle Tuning - New!! TbT Maxi Plus kits for the HW45. Genuine spring with fitted guides, slip,washers and Bum-Slide High Moly paste. Available to order today from www.airrifletuning.com | Facebook
Blog – Tinbum Tuning
Tinbum Tuning – It don't mean a thing if it ain't got a spring!
TbT Guide Sets and Spring Kits to fit Weihrauch HW77 HW77K HW97 HW97K | eBay
Tinbum Tuning Kit für Weihrauch HW30S on Vimeo
Short-Stroking Shenanigans! (Long... - TbT Air Rifle Tuning | Facebook