Here is some info on the new BRT available from Lancer for the L5:
The Lancer Bottom Removal Tool is a simple accessory designed to aide in the removal of the L5ís bottom. The bottom was designed to be removed using live rounds for in the field disassembly. When live rounds are not available the use of the BRT ensures both tabs are depressed simultaneously, reducing the risk of damage to the tabs. The curved design ensures the bottom is captured as the tabs release.
MSRP = $2.25