PRO ARMS 130% Hammer Spring for MARUI SAIGA 12K / SBS GBB

The PRO ARMS 130% Hammer Spring is a high-performance upgrade designed specifically for MARUI SAIGA 12K and SBS GBB airsoft models. Offering a 130% power increase, this spring enhances hammer strike efficiency for improved cycling and reliability. Built for airsoft use only, it ensures consistent performance and durability under demanding conditions, making it an ideal choice for serious players seeking expert-level upgrades.