Daniel Defense DDM4 MK18 Pistol 5.56 NATO, 10.3 in CHF Chrome-Lined Barrel, MK18 RIS II, Folding Sights
This Daniel Defense DDM4 MK18 Pistol is a 5.56 NATO build centered on a 10.3-inch cold-hammer-forged, chrome-lined barrel with a 1:7 twist and carbine-length gas system. It features the MK18 RIS II free-float quad rail, DD GRIP-N-RIP ambidextrous charging handle, and DD-marked bolt carrier, all on forged aluminum receivers with a matte black anodized finish. Installed folding iron sights, rail covers, and a rail-mounted QD sling socket are included, along with a Daniel Defense polymer magazine.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
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. Please refer to the photos for a complete view of condition.
What’s Included
- Folding front and rear iron sights (installed)
- Textured rail panels/covers installed on Daniel Defense MK18 RIS II
- Daniel Defense rail-mounted QD sling swivel socket (installed)
- Daniel Defense polymer DD Magazine (1x 32-round)
- Case
The 10.3-inch barrel is 4150 CMV steel, cold-hammer-forged, chrome-lined, and MP-inspected. It is threaded and fitted with a three-prong flash hider. The barrel is marked "DD MP 5.56 NATO" and paired with a carbine-length gas system for the MK18 format.
The MK18 RIS II free-float quad rail measures 9.55 inches and includes T-numbering, CAGE Code 3E3E2, patent marking, and Daniel Defense’s six-bolt Bolt-Up interface. This configuration provides rigid rail alignment and full-length accessory rail space.
Forged aluminum receivers wear a matte black anodized finish. Controls include the DD GRIP-N-RIP ambidextrous charging handle and a DD-marked bolt carrier. The pistol uses a textured polymer pistol grip and an adjustable brace.
Markings include a lower marked "DANIEL DEFENSE – BLACK CREEK, GA, U.S.A., MODEL DDM4 – CAL MULTI" and an upper marked "MK18" with 5.56 cartouche and forging mark "A." Installed folding iron sights, rail covers, and a Daniel Defense rail-mounted QD sling socket add ready-to-use utility. A Daniel Defense polymer magazine is included. Made in the United States.