Daniel Defense MK18 10.3-inch Upper Receiver 5.56 RIS II

Description

The Daniel Defense MK18 Upper Receiver Group is a complete 5.56 upper built around a 10.3-inch cold hammer-forged government contour barrel and the RIS II railed forend in black. The upper includes an M16-profile bolt carrier group and an ambidextrous GRIP-N-RIP charging handle designed with anti-gas features for suppressed fire. The MK18 configuration emphasizes compact handling and a rugged rail system suitable for short-range and close-quarters applications.

Key Specifications

• The caliber is .223 Rem / 5.56 NATO.
• The barrel measures 10.3 inches with a government contour.
• The rate of twist is 1:7.
• The rail is a RIS II black rail with Daniel Defense bolt-up system testing noted by USSOCOM.
• The finish is black.
• The action is semi-auto.
• The upper ships with an M16-profile bolt carrier group.
• It includes an ambidextrous GRIP-N-RIP charging handle with anti-gas features for suppressed fire.
• The gas system uses a low-profile gas block.

Built to professional standards, the MK18 Upper Receiver Group combines a compact, cold hammer-forged barrel and a robust RIS II rail system to deliver dependable handling in confined or short-range roles. The included M16-profile BCG, low-profile gas block and ambidextrous charging handle provide a straightforward, user-focused package for those who prefer compact configurations without sacrificing component quality.