Primary Airsoft HPA to M4 Magazine Adapter for GBB Pistols Style:TM Hi-Capa 5.1 and Picatinny

and Picatinny

CNC Aluminum Advanced Magazine Release is designed for quick and ergonomic airsoft magazine reloads

SMG Magazine Well Adapter

A HK USP Gas CO2 Blowback Spare Magazine - 18 Rounds

Primary Airsoft HPA to M4 Magazine Adapter for GBB Pistols Style:TM Hi-Capa 5.1 and PicatinnyPrimary Airsoft HPA to M4 Magazine Adapter for GBB Pistols Lightweight glass reinforced nylon polymer construction with CNC aluminum magazine release Designed to even the playing field when playing airsoft with a pistol as a primary against AEGs with hi cap mags. Allows you to use HPA and M4 AEG magazines on your airsoft pistol Comes pre equipped with a Foster quick disconnect Includes a longer screw with 2. 5mm hex head and new universal feed tube