Daniel Defense MK18 Pistol 5.56 10.3″ SBA3 Brace

The Daniel Defense MK18 is an AR-style pistol configured around a 10.3 inch cold hammer-forged barrel and built to the MK18 specification. It ships as a pistol with no magazine and includes an SB Tactical SBA3 pistol stabilizing brace. The rifle-length controls are adapted for ambidextrous operation with a RIS II Picatinny rail for accessory mounting.

Key Specifications

• The caliber is .223 Rem / 5.56 NATO.
• The barrel length is 10.30 inches.
• The barrel material is Chrome Moly Vanadium.
• The barrel is described as threaded with a 1/2"-28 thread pattern.
• The muzzle device is a flash suppressor.
• The rate of twist is 1:7.
• The included brace is an SB Tactical SBA3 Pistol Stabilizing Brace.
• The receiver features a Picatinny rail (RIS II).
• The weight is 5.85 lbs.
• The product ships with No Magazine included.

The MK18 pistol offers a compact, purpose-built AR platform suitable for duty use, training, and range applications where a short-barrel configuration is required. Its cold hammer-forged barrel, threaded muzzle, ambidextrous controls, and RIS II rail make it a practical choice for users seeking a modular pistol with proven componentry.