Cynthia Springs

These Cynthia Springs are various replacement main springs, offering a range of FPS options for your Sillybutts Cynthia.  FEATURES:• Cynthia Springs• Squared/flat on at least one end for easier install• Tune the FPS of your Cynthia INCLUDES: • 1 Cynthia Spring PERFORMANCE:Average FPS with a 0.527 x 12in barrel• 110 (9) FPS with an OOD K24 spring• 134 (10) FPS with a 788 spring cut to 5.5in• 148 (7) FPS with an OOD 2.0mm Lynx Spring• 195 (4) FPS with an OOD 2.3mm Lynx Spring• 222 (2) FPS with a K26 spring cut to 5.5in SPECS• Material: USA-made spring-tempered steel• Type Compression• Dimensions:     Spring Gauge: 1.6-2.0mm     Length: 140-176mm     Diameter: 19-25mm     Coils: 36• Squared: One End LINKS:• Cynthia• More Springs