Three gas blowback rifles from VFC, are featured by Kakasi Tactical in this video. These include the VFC GBB 14.5" build with a Geissele 13.5" SMR Mk14, the modernized FAL VFC GBB, and the VFC GBB 11.5" build equipped with a Daniel Defense RISIII 10.5".

Kakasi Tactical built a Geissele MK4 FBI HRT GBB Rifle that has the VFC M4A1 2015 DX version. It should help put a good impression of the FBI HRT which we actually dig their loadout. If you want the list of parts and accessories he used, here they are:

Kakasi Tactical brings to the field the GHK AK105 Gas Blowback Rifle that has been fitted with the W&S FulL Travel Kit. With the travel kit, the bolt travel distance has been imroved from 85mm to 115mm resulting and event better kick. It is made of steel and can be easily installed on the GBB rifle and this also includes a reinforced hammer.

Here is the list of the additional improvements to this rifle:

Kakasi Tactical got some video compilation of airsoft training and real steel shooting for those who want to use airsoft in preparation for training with real firearms... "We have compiled training videos using past airsoft guns and real guns. Basic movements such as sighting and reloading can be learned with a toy gun. If you plan to shoot a real gun overseas in the future, I think you should practice in advance.