Stainless Steel Metal Spring Retainer for JingJi SR16 & Cyma M4

Tired of broken plastic retainers? Upgrade to our military-grade stainless steel spring retainer designed specifically for JingJi SR16 and Cyma M4 gel blasters.

Battle-Ready Advantages:
✔ Aircraft-Grade Stainless Steel – Virtually indestructible under heavy use
✔ Precision Engineered Fit – Seamless compatibility with SR16 and M4 gearboxes
✔ Eliminates Spring Alignment Issues – Maintains perfect tension for consistent performance

Why This Outperforms Stock:
• 10x longer lifespan than plastic retainers
• Prevents spring slippage during rapid fire
• Mirror-polished finish reduces friction for smoother cycling

Package Includes:
1x Stainless Steel Spring Retainer (Silver)

Compatible With:
• JingJi SR16 series
• CYMA M4 platforms
• Most V2-compatible gearboxes

Pro Tip: Combine with our high-performance spring set for ultimate reliability!