Description
Guarder SP120 Full Tune-Up Kit for Tokyo Marui M4-A1 Series.
• SP120 Spring (Oil Quenched/Tempered Si-Cr Alloy Steel Wire)
• Polycarbonate Piston
• Air Seal Nozzle
• Ball Bearings Spring Guide
• Polycarbonate Ventilation Piston Head
• Stainless Cylinder Head
• Lucid Chromium Plating Cylinder
• Original 18:1 Type Steel Gear
• Enhanced Tappet
• 6mm Steel Bushing
• Shim Set
• Teflon Grease
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