Highlander Airsoft: M4 GBB HPA Adapter
24 Jul 2021
Highlander Airsoft features an HPA Adapter to use an M4 Magazine with a gas blowback pistol made by Area 13. The adapter is claimed to be suitable for all common airsoft pistols of the Hi-Capa & Glock series especially those made Tokyo Marui, WE Airsoft, and KJ Works. Using this gives the GBB pistol user more BBs to fire with the M4 AEG magazine.