Nockturnal Launchpad Lighted Xbow Crossbow Arrow Archery Nocks Universal Fit 3 Pack

DURABLE & LONG LASTING: Integrated, one-piece aluminium housing protects battery and LED during high-speed flight and impact., CUSTOM-FIT MICRO-ADJUSTABILITY: Adjustable barrel end is easy to install and provides a reliable performance fit., VERSATILE: One Size Fits nearly all cross bolt brands and models (comes with 2nd Grey Collet)., EASY & RELIABLE: On/Off Indexed nock end provides added safety and an easy ON/OFF design., WEIGHS: Each nock in this package weighs approximately 30 grains, CONVENIENT: Includes reusable c-clip to prevent lighting during storage. Available in Red or Green, 3 per package.