OOD K31 1.6 x 280mm Spring with Squared Ends

The K31 Spring is compatible with dozens of blasters. These are identical to the ones from McMaster, except I have had these custom ordered, and they have flat/squared-off ends for a better install experience. This means that even after cutting the spring, you will have one flat end, making installation easier!FEATURES: • K31 spring with squared/flat ends INCLUDES:• 1 K31 Spring PERFORMANCE:Average FPS (Standard Deviation)• 110 FPS in a Caliburn C4 with a 0.527 x 14in barrel SPECS• Material: USA-made spring-tempered steel• Type: Compression Spring• Dimensions:     Spring Gauge: 1.6mm (0.06in)     Length: 280mm (11in)     Outer Diameter: 19.8mm (0.78in)     Coils: 45.75• Squared: Both Ends LINKS:• Other Legacy Springs• All Springs