Aftermarket rear velocity adjuster for the original Spyder (model with two side screws to hold in). Replaces the rear end cap and allows you to adjust your velocity with a simple twist. It has a locking screw that makes it tournament legal. Eliminates the need to cut your main spring or disassemble your gun. Adjustable from 180 fps - 300 fps. Anodized aluminum with knurled knob. Will NOT fit newer Spyder models like the E99, Sonix or MR1! A very handy drop in accessory! All black anodized aluminum. From 32 Degrees.

Product ID: XP7997A-A