The Angry Gun Type M 416 M-LOK Handguard Rail System is modeled after the famous Midwest Industries M-LOK rail system, as seen used by the operators of the famous DEVGRU, or commonly known as Seal Team 6.
This rail system has picatinny rails on top as well as many M-LOK slots, making it very modular yet lightweight and it has a much slimmer profile compared to other rails for the HK416 platform.