While M-LOK has been widely accepted, the PWS engineering team sought a way to retain picatinny compatibility on the handguard along its cardinal sides. This desire led to the conception of the ‘PicLok’ system that is featured on PWS MK1 and MK2 MOD 2 rifles and uppers. This hybrid combination is the best of both worlds, merging M-LOK and Picatinny technology into one versatile rail design.