Daniel Defense DDM4 MK18 5.56mm NATO AR Pistol, 10.3 in Barrel, RIS II Quad-Rail, SB Tactical Brace, Black/FDE
This Daniel Defense DDM4 MK18 AR-15–pattern pistol pairs a 10.3-inch 5.56mm NATO barrel with the MK18 RIS II free-float quad-rail. It features two-tone black receivers with an FDE handguard, a rail-mounted fixed front sight, and an SB Tactical arm brace. Factory markings include DDM4 on the lower and MK18/5.56 on the upper, and the handguard carries white laser NSN/part markings. It comes in excellent overall condition with a bright, clean bore.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are minimal markings from previous handling and use. The bore is bright and clean. Refer to pictures.
What’s Included
- Owner's manual
- 1x 30-round Magpul PMAG with window (polymer)
- Fixed rail-mounted front sight (installed)
- Ladder-style rail covers installed on handguard
- Case
The MK18 configuration centers on a 10.3-inch, threaded barrel paired with an A2-pattern flash suppressor. It runs a semi-automatic, direct impingement system chambered in 5.56mm NATO with a 30+1 stated capacity.
The Daniel Defense MK18 RIS II free-float quad-rail handguard is aluminum, FDE, and marked with white laser NSN/part information. T- and L-numbered index marks support repeatable accessory placement, and ladder-style rail covers are installed.
Receivers are black hard-coat anodized with DDM4 markings on the lower, and the upper is marked 'MK18' and '5.56.' The two-tone black/FDE configuration reflects the factory pairing of black receivers with the FDE RIS II handguard. A rail-mounted fixed front sight is installed.
Furniture includes an SB Tactical arm brace with a hook-and-loop strap and a textured polymer beavertail pistol grip. The lower features a STANAG magazine well, and one windowed Magpul PMAG is included.