The revolutionary Anti-Chop System is the world's first true anti-chop bolt. Simple and affordable, the ACS bolt delivers the same results as expensive markers with eyes. Just replace your existing bolt with the ACS bolt simple as that!

Features:

The ACS precision spring tension recognizes obstructions before crushing balls and jamming the marker, so the action never stops
Can be used with the Spyder Imagine, Spyder Esprit, Spyder Victor and Victor II. Does NOT fit the Imagine select.