Crafted with precision to align with the needs of Law Enforcement and Special Operations units worldwide, particularly those utilizing the HK416/M27 IAR system, the Strike Industries GRIDLOK Rail for 416 serves as a versatile solution for dynamic missions. This cutting-edge rail offers effortless interchangeability between primary and secondary handguards through its innovative Quick Rail Detach GRIDLOK locking latch, which seamlessly replaces the factory HK OEM barrel nut. With an array of four lengths (9/11/14.5/16 inches) and two topography options (Full Duty or Lightspeed), this 1-piece GRIDLOK design blends minimal weight with maximum durability. Its user-friendly Quick Rail detach system facilitates rapid field removal, streamlining tasks such as suppressor adjustments or gas block modifications. Remarkably adaptable, the GRIDLOK Rail accommodates distinct configurations to meet diverse mission criteria, eliminating the need for multiple firearms. The inclusion of an integrated flip-up backup iron sight (BUIS) optimizes functionality, while M-LOK compatibility at 3, 6 and 9 o'clock positions, alongside four 360 degree free swivel QD sockets, further enhance customization possibilities. Precision-engineered from 6061-T6 aluminum, the Strike Industries GRIDLOK for 416 epitomizes lightweight strength, catering precisely to essential requirements without superfluous elements.