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
Tapp Modular M4 Adapter is available in almost any color or combination. Check out all the options at TappAirsoft.com. 📸: @eddie671 —— #tappairsoft... | By TAPP Airsoft | Facebook
Hi-Capa HPA/M4 Adapter – Extreme Airsoft RI
Hi-Capa HPA/M4 adapter – Primary Airsoft
Primary Airsoft Universal Hi-Capa HPA/M4 Adapter | SS Airsoft