The Daniel Defense DD4 RIII-S is a next-generation Mk18-pattern CQBR short-barreled rifle, factory-built around an 11.5" cold hammer-forged chrome-lined barrel in 5.56 NATO. This is an NFA item — stamp required — and it lives in the same role the original Mk18 filled for SOF units: a maneuverable, hard-hitting close-quarters carbine that still prints groups out past 300 yards.
The upper wears Daniel Defense's latest RIS III rail, the same free-float M-LOK system adopted by USSOCOM for the URG-I program, giving you a rock-solid mounting surface for night vision, lights, lasers, and vertical grips without compromising barrel harmonics. The ambidextrous DD4 lower gives every operator — left-handed or right — full access to the bolt catch, magazine release, and selector.
The factory FDE Cerakote is the real deal, baked on at Daniel Defense and matched across the upper, lower, rail, and stock. The rifle ships with a Geissele SSA trigger, a low-profile gas block, and Daniel Defense's proven BCG and charging handle. This is a turnkey duty-grade SBR out of the box — no parts to swap, no compromises to fix.
Order yours today. (NFA item — Form 4 transfer required.)
THIS IS A SERIALIZED FIREARM. It must ship to a Federal Firearms License holder. No civilian exceptions.
Buying and shipping through Charlie’s is easy, but there is some information you need to know. Only a federally licensed firearms dealer may receive a firearm or federally regulated serialized item (like a receiver or suppressor). We cannot ship these items directly to you. Please follow these steps to process your transaction:
1) Check your state laws to make sure the federally regulated item you want to purchase is legal in your state. Your FFL dealer should be able to give you all of the necessary information regarding your state specific laws. But, if we ship to your FFL, and there is a legal issue, we cannot accept a return. So please make sure that you know and follow your local and state laws.
2) A quick google search will show you what Federal Firearms Licensed (FFL) dealers are in your area. When you are ready to purchase, contact the FFL dealer you would like to use and get their shipping address. During the check-out, put YOUR address in the “billing” section and the FFL DEALER’S address in the “shipping” section. If you don’t know your FFLs address, that’s okay. You can send the information later.
3) After check out, make sure to contact your FFL dealer to ensure they will receive your shipment for you (most do this for a small fee, but you should always double check).
4) Have your dealer send us a copy of their FFL to FFL@CharliesCustomClones.com. Charlie’s does not reach to your FFL (MAKE THEM EARN THEIR FEE!!!)
5) Be patient! In order to ensure we remain compliant with all federal laws, our compliance department is kept separate from our sales and operations team. Please allow a few days for our compliance officer to verify all of your dealer’s documents and ensure all federal laws are being observed. You should hear from our compliance department within 3-4 business days. If not, feel free to reach out for a status update.
That’s it! We try to make this process as simple as possible for our customers, but if you are unfamiliar the process or have any other questions, please visit our How to Buy a Firearm page for more details.
California and New York residents please, click here. The process may be different due to state specific laws.
NOTE: The free shipping option does not apply to full rifles, unless purchased with a riflescope. If you choose free shipping at check-out, we will bill you for shipping later.
Daniel Defense
Daniel Defense
Daniel Defense
Daniel Defense
Daniel Defense