L'Antre Du Dingo checks out the TNT The One Omnix retrofit kit, designed for 1911 and Hi-Capa airsoft replicas. The kit includes an aluminum hop-up chamber, a bucking, and an inner barrel. It features a Top Dead Center (TDC) adjustment system, which allows users to tune the hop-up using a specialized tool through a small hole, eliminating the need to disassemble the replica for adjustments.