Description
The Daniel Defense MK18 SBR, 5.56, 10.3″, RISII MK18 Handguard, 30rd All NFA Rules Apply is a factory-built, short-barreled rifle (SBR) designed for close-quarters and confined-space applications. It’s a purpose-built, military-proven platform offering maximum performance from a compact 10.3-inch barrel, ready for immediate use with a suppressor or as a highly maneuverable primary weapon. This specific configuration ships to Missouri and compliant US states.
Key Features
- Military Heritage: Based on the SOPMOD Block II/CQBR upper receiver group used by U.S. Special Operations Forces.
- RIS II MK18 Rail: Free-floating, quad-rail handguard provides a rigid, stable platform for optics, lights, and IR lasers.
- Cold Hammer Forged Barrel: 10.3-inch chrome-lined barrel ensures durability, accuracy, and extended service life.
- Complete SBR Platform: Comes as a registered, factory-built short-barreled rifle, not just an upper receiver assembly.
- Suppressor-Ready: Barrel is threaded 1/2×28 and includes a Daniel Defense flash suppressor, ideal for mounting a 5.56mm or .30 cal can.
Specifications & Details
| Specification | Detail |
|---|---|
| Caliber | 5.56x45mm NATO |
| Barrel Length | 10.3 inches |
| Overall Length (Stock Collapsed) | Approx. 26.75 inches |
| Handguard | Daniel Defense RIS II MK18 (9.55 inches) |
| Weight (Unloaded) | Approx. 6.2 lbs |
| Magazine Capacity | 30 Rounds (Magazine Included) |
Weighing in at roughly 6.2 pounds unloaded, this SBR balances heft for stability with a compact form that won’t snag in vehicles or tight hallways. The rifle is built to strict mil-spec standards, meaning it’s compatible with a vast ecosystem of AR-15 parts and accessories from brands like Magpul, SureFire, and EOTech. It’s drop-in ready for your chosen optic and white light, requiring no gunsmithing to become mission-capable. The total price for this complete, NFA-registered firearm is $1620.46.
Who It’s For
This isn’t a range toy. It’s for the end-user who understands the specific advantages of a short-barreled rifle. When it comes to home defense, the MK18’s compact size allows for rapid movement and target acquisition in confined spaces without sacrificing terminal ballistics. It’s for the serious shooter who wants a duty-grade SBR without the hassle of building and registering one themselves, or for the collector seeking an authentic piece of modern military small arms history.
Pros & Cons
Pros: Unmatched build quality and reliability from Daniel Defense. The RIS II rail is arguably the strongest free-float quad-rail ever made. The 10.3-inch barrel is the optimal length for balancing velocity, maneuverability, and suppressor use. Comes as a complete, transferable NFA item.
Cons: Requires ATF Form 4 approval, tax stamp, and compliance with all NFA rules—a process involving a wait time and background check. The quad rail, while incredibly strong, is heavier than modern M-LOK alternatives. The 5.56mm cartridge from a 10.3-inch barrel loses significant velocity, affecting long-range performance and barrier penetration.
Frequently Asked Questions
Q: Is this a complete rifle or just an upper receiver?
A: This is a complete, factory-built, and registered Short-Barreled Rifle (SBR). It is transferred on a Form 4 with a tax stamp, not as a standard Title I firearm or an upper receiver alone.
Q: What is included with the rifle?
A: The rifle ships with one 30-round Daniel Defense magazine. You will need to source your own optic, iron sights, and weapon light. The rifle is ready to accept any standard mil-spec AR-15 trigger, stock, and pistol grip if you wish to customize further.
Q: Can I put a different handguard on it?
A: Technically yes, but the RIS II MK18 rail is permanently attached to the barrel nut via a proprietary locking system. Removal requires specialized tools and is not recommended. The rail is a core, defining feature of the MK18 platform.
Here’s the thing—if you’ve been looking for a no-compromise, professionally-oriented SBR that’s built to the highest standard and ready for serious work, the Daniel Defense MK18 is the benchmark. It represents a significant investment at $1620.46, but you’re paying for a turn-key system with a proven track record. Available at firearms-missouri.com for Missouri residents and nationwide, this SBR awaits the qualified buyer who values capability over convenience.
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