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