Silicone Tubing For Airsoft R-Hop Patch Cutting
8.9 ± 0.2 mm Outer Diameter
6.0 ± 0.1 mm Inner Diameter
This Silicone Tubing is best for outdoor-level FPS ranges (400-550). It is very stiff and will not perform well in cold weather.

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TECHNICAL DATA
8.9 mm OD x 6.0mm ID Silicone Tubing
±0.2mm OD ±0.1mm ID
White-Opaque Color
65 ±10 Shore A (Firm)