DD4 MK18 RIII | 10.3"

Daniel Defense DD4 MK18 RIII 10.3?

The AR15-style DD4 RIII ambidextrous rifle was designed to meet the needs of both right- and left-handed shooters in popular shooting sports as well as for tactical and defensive applications. The fully ambidextrous lower receiver allows the shooter to operate the bolt catch, safety switch, and magazine release without having to remove their dominant hand from the rifle’s grip, while the GRIP-N-RIP loading handle is also fully ambidextrous.

A 9.5-inch lightweight RIS III rail—modeled after the revolutionary two-piece RIS II handguard developed for SOCOM—features an M-LOK mounting system for reduced weight while also offering the ability to attach the M203 grenade launcher.

It surrounds a 10.3-inch cold-forged Government-profile barrel, and our medium-length gas system—known for smoother recoil—contributes to this rifle’s accuracy by enabling rapid yet precise burst fire. This rifle also comes equipped with the ergonomic Daniel Defense buttstock and pistol grip.

Lower: Fully ambidextrous Mil-Spec with an extended, flared magazine well and a QD swivel mount on the rear receiver. CNC-machined from 7075-T6 aluminum, Type III hard-anodized

Upper: Mil-Spec with indexing marks and M4 feed ramps. CNC-milled from 7075-T6 aluminum, Type III hard-anodized

Barrel: Chrome-molybdenum-vanadium steel, cold-forged, 1:7 twist, 10.3" Government profile, medium-length gas system, chrome-plated, Mil-Spec heavy phosphate coated, and HP/MPI tested

Gas System: Pinned low-profile gas block, CNC-milled from hardened 4140 steel with Mil-Spec heavy phosphate coating, medium-length, direct impingement

Muzzle brake: Daniel Defense flash suppressor, 17-4 PH stainless steel, salt bath nitride-coated

Bolt: M16 profile, Mil-Spec MP tested, chrome-plated, properly stacked gas key

Buffer: H-Buffer

Handguard: RIS III 10.3", CNC-machined from 6061-T6 aluminum, M-LOK mounting, Flat Dark Earth Type III hard-anodized

Charging Handle: GRIP-N-RIP Charging Handle, housing CNC-machined from 7075-T6 aluminum, grips and latch CNC-machined from 6061-T6 aluminum, heavy-duty stainless steel roll pins, Type III hard-anodized

Buffer tube: 6-position Mil-Spec 7075-T6 aluminum

Stock: Daniel Defense buttstock, glass-filled polymer with soft-touch coating

Pistol grip: Daniel Defense pistol grip, glass-filled polymer with soft-touch coating

Made in the USA!

A cantonal exemption permit (ABK) is required to purchase this firearm.

Please send us the following documents immediately after or before making your online purchase:
1. All three copies of the approved cantonal exemption permit (ABK), in original form and signed.
2. A copy of an official ID (identity card or passport)

Or bring the above documents with you when you pick up the firearm at our store.

Please send the documents to the following address:

Thoron AG
Bahnhofstrasse 25a
6422 Steinen