I wasn't happy with the stock RDB handguard and I don't love the aluminum M-Lok handguards out there so I made my own loosely based off of the Magpul MOE aesthetic. Only tested for print quality and fit so far. Some modification may be required to fit your RDB and M-Lok accessories.
More info in the release documents. Read the Readme.
LBRY Tags: rdb; keltec; kel-tec; handguard
AR-15 80 Universal Lower Receiver Milling Jig