Video from Hadron Airsoft Designs showing how to install the "Loki" TDC hop unit on the Action Army AAP-01 Gas Blowback Pistol... "In this video, we cover the full installation of the "Loki" TDC hop unit, into the Action Army AAP-01 airsoft pew pew.

We used the stock barrel, with a 'Snipermechanics' Flamingo 60 degree.

It's a simple procedure, using minimal tools. Enjoy the 0.2 to 0.5 bb lifting capability, with incredible long range accuracy.

Silly Ghillie is all happy with his Action Army AAP-01 GBB Pistol with a CCK after installing the LOKI hop unit from Hadron Airsoft Designs... "Today I'm using the new LOKI hop unit by Hadron airsoft designs. The Hop unit allows for a  easy instal TDC and perfectly centres the barrel and bucking to produce good range and accuracy. I'm also using a Flamingo hop rubber and a S+TNT 129mm barrel.