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Daniel Defense RIII Rifle Series: New in Four Configurations

Daniel Defense RIII rifle series is now fully ambidextrous and upgrades the RIS II rail system from picatinny to M-LOK, all while weighing less.  

Daniel Defense RIII Rifle Series: New in Four Configurations

From left, Daniel Defense DD4 RIII, DD4 RIIIS, M4A1 RIII and MK18 RIII (Photos courtesy of Daniel Defense)

More control, more flexibility, less weight. That’s what you get with Daniel Defense RIII rifles. The new DD4 lower is the same lower receiver you have come to love, trust and expect from Daniel Defense, now fully ambidextrous. And the all-new RIS III rail system was modeled after the infamous RIS II that was developed for SOCOM. The RIS III is M-LOK rather than Picatinny quad rail, includes the same 6 bolt lock-up found on the RIS II, and also features the same two-part design as the RIS II allowing it to free float M203 grenade-launchers. The all-new RIS III maintains the same strength and customization available with the RIS II but with less weight. The RIII family will be introduced in 4 configurations and available for purchase in Spring 2022. RIII rails and RIII Uppers will be available later in the year.


Daniel Defense RIS III Rifle Series: New in Four Configurations
DD4 RIII (Photo courtesy of Daniel Defense)

DD4 RIII

This lighter weight, fully ambidextrous version of our industry-standard DDM4 offers right- and left-handed shooters with even more flexibility and control. A 12.5-inch RIS III rail provides easy attachment/detachment of M-LOK accessories, and a mid-length gas system provides smooth, reliable cycling while also reducing perceived recoil and wear and tear on parts.

Features

  • 16" chrome-lined, heavy-phosphate-coated Government-profile barrel for accuracy and durability
  • Fully ambidextrous lower enables shooter to operate important rifle mechanisms without moving dominant hand from rifle grip
  • 12.5" RIS III Rail—modeled after the RIS II two-piece handguard developed for SOCOM—features M-LOK attachment for lighter weight while accommodating M203 attachment

DD4 RIII Specifications

  • Caliber: 5.56
  • Barrel Length: 16 in.
  • Barrel Material: 4150 Chrome Moly Vanadium
  • Barrel Type: Cold Hammer Forged
  • Barrel Profile: Government
  • Rifling Twist: 1:7 in.
  • Gas System Length: Mid-length
  • Muzzle Device: Flash Suppressor
  • Overall Length: 32 ¼ in. - 35 7/8 in.
  • Weight (unloaded): 6.52 lbs.
  • Rail System: RIS III 12.5 in. (M-LOK)

Daniel Defense RIS III Rifle Series: New in Four Configurations
DD4 RIIIS (Photo courtesy of Daniel Defense)

DD4 RIIIS

This short-barreled version of Daniel Defense’s DD4 RIII comes with an 11.5-inch Government-profile barrel for maximum maneuverability and a carbine-length gas system for smooth, reliable cycling. Its fully ambidextrous lower offers right- and left-handed shooters with even more flexibility and control, while a 10.5-inch RIS III rail provides reduced weight and easy attachment/detachment of M-LOK accessories. Class III dealers only; all NFA rules apply.


Features

  • 11.5-inch free-floating Government-profile barrel and carbine-length gas system for increased maneuverability
  • Fully ambidextrous lower enables shooter to operate important rifle mechanisms without moving dominant hand from rifle grip
  • 10.5-inch RIS III Rail—modeled after the RIS II two-piece handguard developed for SOCOM— features M-LOK attachment for lighter weight

DD4 RIIIS Specifications

  • Caliber: 5.56
  • Barrel Length: 11.5 in.
  • Barrel Material: 4150 Chrome Moly Vanadium
  • Barrel Type: Cold Hammer Forged
  • Barrel Profile: Government
  • Rifling Twist: 1:7 in.
  • Gas System Length: Carbine
  • Muzzle Device: Flash Suppressor
  • Overall Length: 27 7/8 in.- 31 ¼ in.
  • Weight (unloaded): 5.92 lbs.
  • Rail System: RIS III 10.5 in.

Daniel Defense RIS III Rifle Series: New in Four Configurations
M4A1 RIII (Photo courtesy of Daniel Defense)

M4A1 RIII

Daniel Defense took its battle-tested M4A1 design and made it even more operator friendly by adding a fully ambidextrous lower to provide right- and left-handed shooters with more flexibility and control. The company also swapped out the RIS II rail system with its new RIS III system, which reduces weight by using M-LOK attachment instead of Picatinny.


Features

  • 14.5 in. chrome-lined, heavy-phosphate-coated M4-profile barrel features a pinned and welded DD Flash suppressor to extend length to NFA-required 16 in.
  • Fully ambidextrous lower enables shooter to operate important rifle mechanisms without moving dominant hand from rifle grip
  • 12.5 in. RIS III Rail—modeled after the RIS II two-piece handguard developed for SOCOM—features M-LOK attachment for lighter weight while accommodating M203 attachment

M4A1 RIII Specifications

  • Caliber: 5.56
  • Barrel Length: 14.5 in.
  • Barrel Material: 4150 Chrome Moly Vanadium
  • Barrel Type: Cold Hammer Forged
  • Barrel Profile: M4
  • Rifling Twist: 1:7 in.
  • Gas System Length: Carbine
  • Muzzle Device: Flash Suppressor, EXT
  • Overall Length: 31 ½ in. - 34 ¾ in.
  • Weight (unloaded): 6.39 lbs.
  • Rail System: RIS III 12.5 in. (M-LOK)

Daniel Defense RIS III Rifle Series: New in Four Configurations
MK18 RIII (Photo courtesy of Daniel Defense)

MK18 RIII

Less weight, more flexibility—with additional features that make this unmatched short-barreled rifle even lighter, more maneuverable and more controllable. The MK18 RIII features a fully ambidextrous lower receiver, and Daniel Defense replaced the RIS II rail system with a lighter-weight RIS III rail system that utilizes M-LOK attachment instead of Picatinny. Class III dealers only; all NFA rules apply.

Features

  • 10.3 in. chrome-lined, heavy-phosphate-coated Government-profile barrel provides outstanding maneuverability and durability
  • Fully ambidextrous lower enables shooter to operate important rifle mechanisms without moving dominant hand from rifle grip
  • 9.5 in. RIS III Rail—modeled after the RIS II two-piece handguard developed for SOCOM—features M-LOK attachment for lighter weight

MK 18 RIII Specifications

  • Caliber: 5.56
  • Barrel Length: 10.3 in. 
  • Barrel Material: 4150 Chrome Moly Vanadium
  • Barrel Type: Cold Hammer Forged
  • Barrel Profile: Government
  • Rifling Twist: 1:7 in.
  • Gas System Length: Carbine
  • Muzzle Device: Flash Suppressor
  • Overall Length: 26 ¾ in.- 29 7/8 in.
  • Weight (unloaded): 5.73 lbs.
  • Rail System: RIS III 9.5 in.
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