Without going back through the posts to see if these were mentioned, there's the Wiser Precision, MK Machining, and David Tubb's. I've got the Sporter model but may have to upgrade to the V3 to work with suppressors. Wiser says people have used their unit with the Sporter and a can, but the whole unit has to go in front of the can. Like others my issue is bench length so would have to use something attached to the sling swivel or front rest like yours. If it gets too complicated to set up, I might as well go back to an optical unit, which isn't ideal at a club with a lot of members.
