Daniel Defense DDM4 M4A1 FSP RIS II AR-15, 5.56 NATO, 16.5 in Barrel, Carbine-Length Gas, Black
This factory Daniel Defense DDM4 M4A1 FSP RIS II carbine pairs a 16.5 in threaded 5.56 NATO barrel and carbine-length gas system with the 12.25 in RIS II FSP free-float quad rail (P/N DD-8030-BK). It features a fixed A2 front sight base with bayonet lug, a folding rear BUIS, and DD-branded charging handle and bolt carrier. The rail carries U.S. Patent No. 7,716,865 and CAGE Code 3E2E2 markings.
It includes the original case and a Daniel Defense 32-round 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: The exterior shows a few minor scratches and small blemishes from prior handling. Surfaces present cleanly overall.
What’s Included
- Original case
- 1 Daniel Defense 32-round polymer AR-15 magazine
- Daniel Defense buttpad for carbine stock (detached, not installed)
The M4A1 FSP RIS II configuration centers on Daniel Defense’s 12.25 in free-float quad rail designed around a fixed front sight base. The rail is marked with U.S. Patent No. 7,716,865 and CAGE Code 3E2E2, and includes T and R/L index marks for repeatable accessory placement.
The carbine uses a 16.5 in threaded barrel capped with an A2 birdcage flash hider and runs a carbine-length direct impingement gas system. Chambered in 5.56mm NATO, it offers 32+1 capacity with the included Daniel Defense polymer magazine.
Sighting is handled by a fixed A2 front sight base with bayonet lug and a folding rear BUIS, delivering a durable, duty-style sight setup out of the box.
Factory DD components include a DD-branded charging handle and bolt carrier. The upper receiver has the "A" forge mark. The receiver extension is 6-position, paired with a telescoping carbine stock featuring textured overmold panels and an A2-style polymer pistol grip.
Finished in black and made in the USA, this DDM4 M4A1 FSP RIS II presents as a well-equipped AR-15 carbine with proven Daniel Defense hardware throughout.