Upgrading My TM Hi-Capa 5.1 | TTI TDC Install, Short Stroke, and Fixes

In this video, I continue the TM Hi-Capa 5.1 series by installing a few key upgrades to improve the pistol’s performance and shooting feel. I installed the Waldo Dynamics ION recoil spring, the La Capa Customs short stroke kit, the TTI TDC hop-up chamber, and a 4UAD bucking. The goal was to make the gun feel snappier, improve cycling, and get better hop performance overall. During the hop-up install, I ran into a few issues along the way, but I was able to fix them by the end. I also explain what caused the problems so anyone doing similar upgrades can avoid the same mistakes. This is part of my ongoing TM Hi-Capa 5.1 series, where I’m documenting the gun from stock form into a more upgraded setup over time. Timeline: 0:00 - Intro 1:31 - Short Stroke and Recoil Spring Install 4:50 - First Impressions of New Setup 5:14 - Pros and Cons of Short Stroking 7:29 - Shooting Demo 7:47 - Hopup and Bucking Upgrades 11:02 - Hopup Install 18:43 - Time to Troubleshoot 23:50 - Hopup, Barrel, Slide Issues 24:11 - Problem Solved! #airsoft #tmhicapa #hicapa #tokyomarui #airsoftupgrade #airsoftpistol