In this video, Laylax shows how you can install the Proto Arts Gear Hot Rod Style M4 Upper Frame . According to the company, this ultra-light M4 upper frame simplifies your airsoft game experience! Integrating key parts and shaving 580g off a KRYTAC TRIDENT MK2 PDW-M, it streamlines handling and allows for quick hook grips. Its low-profile handguard even lets you mount flashlights closer to the barrel for precise indoor aiming. Plus, the versatile muzzle accommodates various attachments.