Last year, Radian Weapons debuted the Guardian optic mount and guard for an RMR on the Glock MOS footprint. Now, Radian seeks to expand the Guardian lineup with multiple new entries. The new Guardian mounting system will be available in the Glock MOS footprint for the 407 and 507k series. Additionally, the company will introduce the Guardian system to the Walther PDP family of pistols, accommodating RMR and 407/507k series of red dots.