These O-rings are upgrades/replacements for your XYL KM9 Unicorn Blaster. O-rings wear over time depending on conditions. This 3pc O-ring set offers a tighter fit than the included stock O-rings. 

FEATURES:
• Upgraded O-rings for a tighter air seal
• Includes 3 O-rings including both sizes

SPECS:
• Dimensions: 3.1 x 34mm (Plunger)
• Dimensions: 1.5 x 13mm (ramrod-pusher)
• Material: Fluorine Rubber

LINKS:
• XYL Unicorn Blaster 
• Unicorn Upgrade Spring
• More XYL Unicorn Parts