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.

The build is heavily accessorized to match the tactical setup seen in the show, including a 552-style holographic sight paired with a flip-to-side magnifier, a laser/light box, and a specific suppressor. Kouinia notes that the replica is quite heavy, weighing in at around 4 kilograms, which adds to its "real steel" feel but requires a bit of physical stamina to carry. While he praises the overall ergonomics and aesthetics, he points out a minor drawback regarding the tactical light’s 300-lumen output, which he found somewhat underpowered during nighttime operations.

Performance-wise, the replica excels during scientific range testing. It demonstrates exceptional accuracy at 40 meters, with Kouinia managing to land tight groupings on a target. Even more impressive is its ability to reach targets at 75 meters with a remarkably flat trajectory using 0.30g BBs, despite operating at just under one joule of power. The video concludes by highlighting the high-end nature of this €2,000 build while announcing a slightly more accessible version priced at €1,500 for players seeking similar performance at a lower cost.