Kouinia presents a premium airsoft replica of the HK 416, specifically the Tokyo Marui Next Gen Recoil Shock (NGRS) model. This custom project was inspired by the French special forces series Cœur Noir and was developed in partnership with OP Store. The replica is designed for maximum realism, featuring an electric blowback system that provides a distinct recoil sensation, a full metal body, and a specialized "battle-worn" paint finish that gives it a rugged, field-used appearance.

Kouinia unboxes a custom airsoft rifle inspired by the French commandos in the series Cœurs Noirs (Black Hearts). The custom rifle, a Tokyo Marui HK 416 Recoil Shock, was made in partnership with OPS Store and has a unique paint job, which he rates highly. He highlights the realistic kickback of the rifle and notes that the build, which includes an optic and laser combo from Sightmark, is valued at around 1500€.