TAPP Airsoft Tapp M4 Adapter for Hi-Capa | Modular Series
I know a lot of people hate the Primary Airsoft adapters, but when it's 110° outside, a light kit is a life saver. Also a great first step into HPA : r/airsoft
Hi capa M4 mag adapter & carrying case | HopUp Airsoft
SOLD Tokyo Marui Gold Match Hi Capa with Tapp M4 Adapter | HopUp Airsoft
M-Adapter Aluminium Ultra Light for Hi-Capa – Monk Customs