• Home
  • Firearms
    • Caliber
      • 7.62x51mm (308 Win)
      • 5.56x45mm
      • 300 Blackout
    • Gas System
      • Pistol Length
      • Carbine Length
      • Mid Length
      • Rifle Length
    • Finish
      • Black
      • Cerakote
      • HydroGraphic
    • Ambush Hunting Rifles
    • Pistols
  • Uppers
    • Pistol Length URG
    • Carbine Length URG
    • Mid Length URG
    • Rifle Length
  • Rails
    • DDM4 Rail
    • MFR Rail
    • MFR XL Rail
    • Omega Rail
    • SLiM Rail
    • Rail Tools & Components
  • Suppressors
    • DDWave Quick Detach
    • DDWave Direct Thread
  • CHF Barrels
    • 10.3 Inch CHF Barrels
    • 11.5 Inch CHF Barrels
    • 12.5 Inch CHF Barrels
    • 14.5 Inch CHF Barrels
    • 16 Inch CHF Barrels
    • 18 Inch CHF Barrels
  • Ammunition
  • Parts & Accessories
    • DD Magazine
    • Gas Blocks
    • Lower Parts
    • Mounts
      • Sling
      • Optics
      • Flashlight
      • Bipod
    • Muzzle Devices
    • Rail Panels
    • Small Parts
    • Sights
    • Tools
    • Upper Parts
  • Gear
    • Oakley
    • Knife
    • Headwear
    • Rifle Case
  • Furniture
    • Combos
    • Buttstocks
    • Pistol Grips
    • Vertical Grips

DDM4ISR® (Mil Spec +®)

$3,198.00

Only Available at Authorized Dealers

Additional Information

Manufacturing # / SKU 02-103-15139-047
Restricted Shipping Yes
Caliber 300 BLK
Muzzle Thread Permanently Attached Muzzle Device
Gas System Pistol Length
Barrel Length No
Profile No
Product Weight 7.57 lbs
Length 31 ½” – 34 ¾”
Magazine DD Magazine
Case Daniel Defense Full-Latch Impact Plastic Case
Manufacturer Daniel Defense

Product Downloads

   Rifle Manual Download Rifle Manual

DDM4ISR® (Mil Spec +®)

The Daniel Defense DDM4ISR is our Integrally Suppressed Weapon System optimized for the .300 Blackout cartridge. Built around a 9”, Cold Hammer Forged barrel that is fluted along with a target crown and a standard pistol-length gas system, this versatile, high-performance rifle is the complete package, accurately delivering both subsonic and supersonic projectiles downrange with unrelenting reliability. Because the suppressor is an integral part of the barrel, this weapon system is ready for service right out of the box. There’s no attaching a suppressor and wondering if it’s mounted correctly and/or properly aligned. There’s no re-zeroing for suppressed vs. unsuppressed fire.

The DDM4ISR’s integral suppressor extends the barrel to an NFA-required 16 inches in length, so this platform is not classified as a Short Barreled Rifle (SBR) and therefore only requires a single tax stamp (for the suppressor). The suppressor’s lightweight outer tube is constructed of durable, heat-resistant metal alloys and coated with a protective high-temperature Cerakote-C finish, which is able of withstanding extreme temperatures and harsh environments. The suppressor is also user-serviceable, so its baffle core can be easily removed for periodic cleaning in order to maintain peak performance.

The DDM4ISR comes standard with Daniel Defense’s MFR XL 15.0 modular handguard, which features a continuous 1913 Picatinny rail on its top, for the mounting of iron sights or optics, and Keymod attachment points on the sides and bottom. This longer, multi-functional handguard, in conjunction with a Daniel Defense Buttstock and Pistol Grip, make the DDM4ISR as ergonomic and maneuverable as it is versatile. A resilient, attractive Mil Spec + Cerakote finish not only protects this weapon system from the elements, it also adds to its overall aesthetics—so while you’re sending rounds down range; you’ll also turn a few heads.

NFA Disclaimer

This firearm is a regulated item by the National Firearms Act (NFA). Please check with your local and state municipalities for any further regulatory requirements. It is the buyer’s responsibility to make sure they comply with all NFA rules and applicable laws.

Materials & Construction

  • UPPER RECEIVER: Mil-Spec with Indexing Marks and M4 Feed Ramps
  • LOWER RECEIVER: Mil-Spec with Enhanced Flared Magazine Well and Rear Receiver QD Swivel Attachment Point
  • UPPER RECEIVER: Mil-Spec with Indexing Marks and M4 Feed Ramps. CNC Machined of 7075-T6 Aluminum
  • BARREL: Chrome Moly Vanadium Steel, Cold Hammer Forged, 1:8 Twist, 9″ S2W Profile, Chrome Lined, Mil-Spec Heavy Phosphate Coated, and HP/MPI Tested
  • INTEGRATED SUPPRESSOR: All Stainless Steel Construction, 17-4PH Monolithic Baffle, High-temp Cerakote-C Finish, Pinned and Welded Assembly.
  • GAS SYSTEM: Daniel Defense ISR Integrated Gas Block, Pistol Length, Direct Impingement
  • BOLT CARRIER GROUP: M16 Profile, Mil-Spec MP tested, Chrome Lined, Properly Staked Gas Key
  • BUFFER: H Buffer
  • SIGHTS: Sold Separately
  • HANDGUARD: MFR XL 15.0
  • RECEIVER EXTENSION: 6 Position Mil-Spec 7075-T6 Aluminum
  • BUTTSTOCK: Daniel Defense Buttstock, Glass Filled Polymer with Soft Touch Overmolding
  • PISTOL GRIP: Daniel Defense Pistol Grip, Glass Filled Polymer with Soft Touch Overmolding
  • GRIP: Daniel Defense Vertical Grip, Glass Filled Polymer with Soft Touch Overmolding
  • FINISH: Mil Spec + Cerakote
  • Made in the USA!

All Daniel Defense products carry a 100% satisfaction guarantee against defects in original materials and workmanship. If your Daniel Defense product shows evidence of such defects, Daniel Defense will make every accommodation to fix, repair, or replace your product in the most expeditious manner possible. Daniel Defense does not warranty products or damage caused to our products by the correct or incorrect installation of other manufacturer’s products. Be sure to retain your sales slip as proof of purchase date when making a claim.

Product Reviews

You're reviewing: DDM4ISR® (Mil Spec +®)

How do you rate this product? *

 
1 1 star
2 2 star
3 3 star
4 4 star
5 5 star
Price
Value
Quality

Customer Reviews 28 item(s)

Love it.
Great fun to shoot. Highly accurate.
Price
Value
Quality
Review by River / (Posted on 8/12/2018)
Feel Like It Was Made For Me
After a long 9 month wait finally got my tax stamp back and spent some time with this rifle. Added an ACOG , binary trigger, and to me the vertical grip was just a little uncomfortable so I replaced with a Fortis shift , and then a Magpul MS4 QDM sling. This rifle is a pleasure to fire, lightweight, no recoil, and quiet with subsonic rounds, which is great if you have bad hands, bone spurs on your shoulder and hearing loss. Almost like the doctor prescribed this lol, which was an excellent selling point to my wife also! Thanks DD for a great rifle.
Price
Value
Quality
Review by Mike / (Posted on 8/8/2018)
Think Daniel Defense it the top manufacturer period
One of the finest weapons built by far.
Price
Value
Quality
Review by Bobkat / (Posted on 6/15/2018)
Great gun
Great weapon fit and finish top quality
Price
Value
Quality
Review by Bjra / (Posted on 6/13/2018)
My sweetest AR
Got mine after 8 month wait last week. It shines with subsonic ammo. Virtually no recoil. Wife actually likes shooting it. Accuracy is great at out 100 yards with 1 MOA groups easy for this novice, Haven’t stretched it to 300 but that’s not where this rifle shines. Trigger feels great. Build quality is top notch. This rifle is expensive but worth the money and wait for tax stamp.
Quality
Price
Value
Review by Mike / (Posted on 4/10/2018)
Pricey but worth every dime
Just got my stamp yesterday on a 7 month wait with a trust. Gun is fun and quiet. This is my 5th daniel. Lot of money but you get what you pay for.
Price
Value
Quality
Review by Kreuz / (Posted on 3/6/2018)
Amazing
I have multiple high-end 300BO SBR rifle-suppressor packages (spike’s compressor, aac rifle/can, and this DD). This by far is the best total package. Best: shooting (subsonic and super), balanced (perfect length), gassed tuned (no gas’s blowback), weight...

My fav SBR/suppressed rifle out of many. If you have the dough this is the way to go. Amazing build and quality on all fronts. Thanks DD.
Quality
Price
Value
Review by SBR guy / (Posted on 3/2/2018)
300 Blackout Gold Standard
Basass big time
Price
Value
Quality
Review by RickWestCoast / (Posted on 2/23/2018)
Love it!!!!!
Great gun!! Took almost a year to get all the ATF stuff done, but well worth the wait. With the thermal day/night sight and sub-sonic rounds, it's been a death sentence to numerous coyotes after dark at my place. I've had several doubles with it.
Price
Value
Quality
Review by Guy / (Posted on 1/4/2018)
DDM4 ISR
Just received the rifle and stamp took it to the range and very happy.In fact so satisfied,I just purchased another to keep NIB .Also, purchased a Triicon 3.5x35 Red crosshair with both supersonic and subsonic BDC ,however still working with the optic.
Price
Value
Quality
Review by Boeingman / (Posted on 12/30/2017)
price is too high. $2,000 maybe
price is too high. $2,000 maybe
Quality
Price
Value
Review by realistic buyer / (Posted on 12/14/2017)
My 5th dd
Purchased one yesterday. Now we wait and wait !!!!!!
Price
Value
Quality
Review by Kreuz / (Posted on 4/25/2017)
Best money can buy
If you are one and done or top of the line kind of buyer/shooter this is the weapon for you. If you want the best AR money can buy then your looking at the right weapon! I recently purchased my DDM4iSR and waiting on my tax stamp =*( This is the only down side but hey its only one tax stamp instead of two. Many people complain about the price, but honestly most dealers will sell lower them MSRP and if you want to save $200-400 and build a mid quality AR go ahead. This rifle is ready from day one throughout its life time! Daniel Defense is top notch and their customer service is second to none. I to did not want to spend so much on an AR but i wanted a AR that would last for years to come. This is that rifle.... now only if the ATF worked faster approving form 4''s...... The only negative reviews will be by the ones that cant afford this =*(
Price
Value
Quality
Review by Chris / (Posted on 4/22/2017)
Great rifle
Beautiful rifle. Dead silent and no recoil. Absolutely a blast to shoot.
Quality
Price
Value
Review by 702shooter / (Posted on 1/14/2017)
Outstanding piece of kit, Love mine
Great weapon and fills the gap nicely between my 556&308 (both suppressed) without compromising length
Price
Value
Quality
Review by Bart / (Posted on 12/31/2016)
Great all round mil,le,civilian ..possibly fav m4 to date . Would make a great the ultimate hog gun..
Ingenious idea wrh the suppersor/barrel combination and in keeping velocity and avoding sbr configuration .
Price
Value
Quality
Review by Tenn (Lee) Ga (gator) / (Posted on 12/21/2016)
I love it
I love it
Price
Value
Quality
Review by Ted / (Posted on 12/6/2016)
Great investment
Great product! Price will deture purchase from your average joe when you can buy an AR rifle and a suppressor for $2000.00 ! I have been fortunate enough to be able to purchase my own DDM4ISR 300 blackout rifle! Shoots great the suppressor with subsonic ammo is the true virtue of this weapon. For the price they should have added a cleaning kit and additional mags! Daniel Defense is a great manufacturer and you see it in its products I highly recommend this gun to anyone looking to invest in a quality suppressed rifle from the factory ready to Rock!!!
Price
Value
Quality
Review by 5150Texas / (Posted on 10/29/2016)
It will be my Third DD!
I own the .308 Hylander the DDM4V7 .556 both equipped with ACOGs
I can not wait until X-Mas to buy this 300 black out!
Daniel Defense weapons are second to none, a few of my friends who are "cheap" give me crap but they know everything I do comes with Quality as the Word!
Price
Value
Quality
Review by Randy / (Posted on 10/18/2016)
7/10 price is a bit high...but it is one of the newer guns
All around good rifle
Wonderful to the touch
Almost god like
Love that there is a built in silencer
Price
Value
Quality
Review by JAKETHEKING / (Posted on 10/12/2016)
Can't wait to do a demo.
Again Daniel Defense is on the cutting edge of weapon design and innovation! Total package for a .300 blk. End user with multiple applications.
Price
Value
Quality
Review by Billy Mac / (Posted on 10/7/2016)
Amazing quality, extremely quiet, best purchase I've made in a long time.
My wife loves shooting this model because it's so quiet. I've only shot a couple hundred rounds so far and bc it's integrated with the barrel, I don't have issues with gas making my eyes water. I'm used to shooting mk18 with a can, and the gas leaks from where the can connects to the muzzle. I don't have that problem with mine. I wanted to support 300 black out and I am super happy with this rifle. I think MSRP scares people from this gun, I know I was worried, but my local shop was very reasonable and I was very happy in the end.
Price
Value
Quality
Review by MOB / (Posted on 9/29/2016)
HIGH QUAILTY
I met the nicest Daniel Defense rep the other day. He gave me the pleasure of letting me shoot one. After putting a couple rounds down range, I fell in love! Best AR i've ever shot. Overall just a great gun along with a great company. Looking forward to doing business with ya'll in the future
Price
Value
Quality
Review by Nick / (Posted on 9/24/2016)
At the time, price was the make or break it part. I just didn't know if I would regret the purchase. I can say that the quality and feel of this rifle are solid. I don't regret purchase now.
I went to buy a V11, but remembered I wanted to support 300 BO round, that's how I learned about the ISR300 (Gen1). As a alternative to a 2 tax stamp set up I was looking at, I didn't realize at the time this would be the perfect combination for what I wanted in a home defense rifle. My wife loves shooting it. She thinks it's so quiet it allows her to have an enjoyable experience. MSRP.....This was a huge concern for me and caused me issues, so I went to my local gun shop which I assumed it was the same as MSRP. It wasn't... and I found the amount to be fair, total tax, tax stamp, and rifle were still under MSRP by a couple hundred. I got my Gen 2 ISR300 a couple months ago and LOVE it's Quality and feels like I have the perfect rifle. I was just getting back into guns and I wanted a light, well made rifle, because I wondered if it was better to build my own vs. buy it. DD is the way to go! Gen 2 design is way better looking and amazing design for hand guard compared to gen 1 design.
Price
Value
Quality
Review by Bob / (Posted on 9/20/2016)
Happy
I love my DD 300 ISR. When shooting subsonic ammo, the mechanical noise of ejecting the spent brass and chambering the next round is all I hear. It makes shooting pleasant and less intimidating to my wife.
Price
Value
Quality
Review by Bruce / (Posted on 8/21/2016)
ISR owner
I own the first ISR and love it. Barrels last 4 times longer than other manufacturers
Price
Value
Quality
Review by jhodge67 / (Posted on 8/4/2016)
BEST AR BRAND
HIGH QUALITY
Quality
Price
Value
Review by JEFF / (Posted on 5/2/2016)
Snakeskin grips are great!
I've got your M4 556 light barrel with the same grip material. I call it "snakeskin" but I like the way I keep control when hands get sweaty. Good addition. Can't wait until the suppressed 300 comes out.
Quality
Price
Value
Review by Rod / (Posted on 4/28/2016)
Post your comment

Daniel Defense