Airsoft Chay does an assembly and configuration of an Airsoft VFC HK416D CAG gas blowback rifle. It starts with the base rifle, and that he painstakingly attaches various components. These include a Geissele-style handguard, a SureFire Scout light with a pressure switch, a PEQ-15 laser/light module, an EOTech holographic sight with a magnifier, and a mock suppressor. The video emphasizes the satisfying clicks and mechanical sounds of each part being secured, providing a tactile sense of the build.
Another round of photos to look into to make your own impression with this CAG Impression in Airsoft & Milsim News Blog (AMNB) Gear Gallery... "My friend Kross Konn aka nospecificnamegiven has some of the coolest kit builds when it comes down to US Special Forces Units in regards of impression for reenactment/battle display use.