GUARDER Steel Valve Knocker for Marui G17 Gen4 & G19 Gen3 / Gen4 GBB Airsoft

For the ultimate upgrade to your Marui G17 Gen4 & G19 Gen3 / Gen4 airsoft gun, the GUARDER Steel Valve Knocker is the perfect choice. The DEFRIC surface coating and steel enhanced construction offer reliable toughness and increased durability compared to other valve knockers. Enjoy the look and feel of a stronger airsoft gun with the GUARDER Steel Valve Knocker.