So, I have previously seen a set of handguards on a used build that came through my shop with Picatinny rails on the top and bottom, and with either Keymod or MLOK on the left and right. I have been able to find something sort of like this with a short piece of picatinny on the bottom, like...
Item has been relisted, you can find the new listing at: https://www.theoutdoorstrader.com/threads/ft-geissele-mk4-10-grey-rail.2321203/
Item Name: FT Geissele mk4 10" grey rail
Location: Morrow
Zip Code: 30260
Item is for: Trade Only
Trade Value or Items Looking For: Mk4 rail in OD green...
Item has been relisted, you can find the new listing at: https://www.theoutdoorstrader.com/threads/fs-ft-shopsmith-shop-smith-mark-v-home-woodworking-station-with-goodies.1686871/
Item Name: FS/FT ShopSmith SHOP SMITH Mark V Home Woodworking Station With Goodies
Location: Duluth
Zip Code...