Daniel Defense DDM4 M4A1 5.56 NATO AR-15, 14.5 inch CHF Chrome-Lined Barrel, RIS II Quad Rail, Ambidextrous Controls
This Daniel Defense DDM4 M4A1 stands out with a 14.5 inch cold hammer forged, chrome-lined barrel and the proven M4A1 RIS II free-float quad rail. It features ambidextrous controls, a carbine-length gas system with a pinned low-profile gas block, and factory rollmarked receivers. Markings on the rail and upper reflect its SOPMOD Block II lineage, including CAGE code and patent information, adding clear provenance to a well-executed AR-15 configuration.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This firearm is in great shape. There are some minor and superficial scratches and blemishes present. The bore is clean and shiny.
What's Included
- Daniel Defense hard case
- Original manual
- One 32-round polymer magazine with yellow follower
The heart of this rifle is its 14.5 inch chrome-moly-vanadium steel barrel. It is cold hammer forged, chrome lined, M4 profile, HP/MPI tested, and cut with a 1:7 twist for 5.56 NATO. Threads are 1/2x28, and it is fit with an A2-type flash hider. Factory specification indicates an extended flash suppressor pinned and welded to achieve a non-NFA overall length.
The free-float Daniel Defense M4A1 RIS II quad rail (12.25 inches, 6061-T6 aluminum) provides a continuous, T-marked top Picatinny rail. It bears clear lineage markings: "M4A1 RIS II," P/N DB001-BK, U.S. Pat. No. 7,716,865, CAGE CODE 3E2E2, plus the "FRONT SIGHT TEE" orientation mark.
The carbine-length gas system uses a pinned low-profile gas block.
Receivers are 7075-T6 aluminum with a Type III hard-coat anodized finish in black. The upper is marked "M4A1" and "5.56" with gold inlay. The lower is marked "MODEL DDM4 CAL MULTI" with the Daniel Defense Black Creek, GA rollmark, and includes a flared magwell and rear QD sling socket. The platform is AR-15, semi-automatic, direct impingement.
Controls and furniture are well appointed: an ambidextrous safety selector, ambidextrous dual-latch charging handle, a collapsible glass-filled polymer stock with rubber overmold, and a Daniel Defense rubber overmold pistol grip. Capacity is 32+1, and one 32-round polymer magazine with a yellow follower is included.




