If you've been looking to replace that MR2 ACS bolt, look no further. You'll not find a replacement bolt by other manufacturers for these markers since they are different than all the rest. That's because the detent grooves are cut on a different angle to accomodate the detent placement. This is the factory delrin bolt that comes supplied with the MR3 and MR2 with eyes. It comes with everything you need including the striker connecting pin that works with the Snap-T cocking mechanism. It can be used as a replacment for any of the MR2 or MR3 markers.

This is a replacement for Kingman part #VBT007 in your manual.