Range Tested: Daniel Defense DDM4 PDW

posted on April 22, 2020

Today’s self-protection firearms, whether rifles or pistols, emphasize light weight and compact dimensions, while still offering ample magazine capacity for full-power ammunition. Given these considerations, it is no wonder Eugene Stoner’s AR-15 platform is serving as the foundation for the current crop of portable, and powerful, defensive arms—primarily carbines and large-format pistols—known as PDWs.

Daniel Defense DDM4 PDW side view

While the PDW concept can be traced from the AR-15 and submachine guns like the MP5 back to the M1 Carbine of World War II and the lever-action repeaters of the American West, the current crop of semi-automatic, gas-powered, AR-style pistols have evolved the category to new levels of utility. One of the most recent entries to the field, and the topic of this review, is the DDM4 PDW in .300 Blackout from Daniel Defense—an American manufacturer that knows a thing or two about building ARs.

At less than 6 lbs. and measuring shorter than 21” with the pistol brace collapsed, the DDM4 PDW is easy to carry and small enough to store just about anywhere—one benefit of a defensive tool such as this is its ability to remain discreetly stowed within arm’s reach. It’s also a shooter! In range testing, using a Trijicon MRO HD red-dot sight, the PDW stacked rounds into ragged holes at 25 yds. When paced out to 50 long steps, five-shot groups averaged less than 1.5”—a fair piece better than even my best results with a conventional handgun.

Tactical shooting with Daniel Defense DDM4 PDW

Another advantage the DDM4 PDW offers over other defensive arms is its chambering. The .300 Blackout cartridge was designed specifically to function in auto-loading platforms, and offer big-gun power, from close range out to moderate distances, without the bark or recoil of traditional .30-cal. rifle ammunition. It’s also extremely well-suited for use with short-barreled platforms, shorter gas systems, and in conjunction with suppressors thanks to its relatively mild chamber pressures and the availability of a variety of both super- and sub-sonic loadings. Considering the PDW’s 7” cold-hammer-forged barrel, pistol-length gas system and threaded muzzle—5/8x24 TPI—it really is a brilliant pairing, both in concept and operation. The addition of a linear compensator at the muzzle further tames the effects of recoil and directs the escaping gases forward, away from the shooter’s face, facilitating faster follow-on shots and ensuring an enjoyable range experience.

Considering the current popularity of PDW-style firearms—probably the highest among armed citizens since the days of the pioneers—and the recent evolution of large-format AR-style pistols, the new offering from Daniel Defense deserves due consideration. Combining size, shootability and a serious chambering in the .300 Blackout, the DDM4 PDW is equally adept at punching paper at the range or providing predator protection on the ranch, in the wild, or in defense of the home.

Daniel Defense DDM4 PDW side view

Specifications

Manufacturer: Daniel Defense (danieldefense.com)
Model: DDM4 PDW
Chambering: .300 Blackout
Action Type: direct-gas-operated, semi-automatic, center-fire pistol
Receiver: CNC-machined 7075-T6 aluminum
Barrel: 7” chrome moly vanadium steel, cold hammer forged, S2W contour; 5/8x24 TPI threaded muzzle with linear compensator 
Rifling: 1:7” twist
Stock: Maxim Defense CQB Pistol Brace
Magazine: 30-round detachable box, Magpul PMAG
Sights: Picatinny rail for optics
Trigger: mil-spec fire control group
Safety: bilateral selector
Overall Length: 20.75”-24.75”
Weight: 5 lbs., 11 ozs.

Latest

Forehand & Wadsworth British Bull-Dog right-side view nickel-plated gun revolver with black grip
Forehand & Wadsworth British Bull-Dog right-side view nickel-plated gun revolver with black grip

I Have This Old Gun: Forehand & Wadsworth British Bull-Dog

Many eagle-eyed NRA members viewing the 1993 Western “Tombstone” no doubt recognized the Forehand & Wadsworth British Bull-Dog so deftly welded by actress Joanna Pacula, portraying Big Nose Kate, during a contemptuous card game between Doc Holliday and Ed Bailey.

Medal Of Honor Marine Receives Henry Repeating Arms Tribute

Henry Repeating Arms presented a Spirit of the Corps 250th Anniversary Tribute Edition rifle to Maj. Gen. Livingston for going above and beyond the call of duty on May 2, 1968, during the Battle of Dai Do in Vietnam.

Preview: Duramag 1911 DS Magazines

Duramag’s 1911 DS Magazines are compatible with numerous 9 mm Luger-chambered 2011-style handguns on the market.

Colt Monitor: The FBI’s “Fighting Rifle”

In the years between the World Wars, a rare variation of the Browning Automatic Rifle proved its reputation as an effective, devastating automatic rifle for combat between the country’s lawmen and its outlaws.

The Armed Citizen® May 19, 2025

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

Report Shows Inventory, Prices Have Dropped At Firearm Retailers

Nearly all gun and related gear inventories at retailers dropped in the last 12 months. So have most prices paid at the counter, according to the year-over-year comparison detailed in the latest RetailBI report.

Interests



Get the best of American Rifleman delivered to your inbox.