Well, on advice of some other sages, I took a hard look at my LOP and dropped it from 14"ish down to 12-1/4" +/-.
Felt a little queersome at first, considering I had used it for a couple years in its prior config, but given the new 32 cal carbine length 34" 13/16AFF barrel, it actually wasn't too hard to get accustomed too.
Should be able to mount that Merit #4 right at the breech of the tang.
A 12-28 post, and a single small set nut will keep it low profile.
