Protect the micro sight mounted on the Hi-Capa 5.1 GBB Pistol with the Nineball Hi-Capa 5.1 Aegis Direct Mount HG from Laylax... "It is a direct mount with a bulletproof plate developed exclusively for Tokyo Marui Gas Blowback High Capacity 5.1 while maintaining the bulletproof performance of the bulletproof protector "Sight Protector Aigis" for optical sites.