NRA Gun of the Week: Desert Tech MDRX

by
posted on March 12, 2021
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
Utah-based firearms manufacturer, Desert Tech presents its MDRX (Micro Dynamic Rifle) with semi-automatic function driven by a tunable, short-stroke-gas-piston system. The gun enables operators to switch calibers within the unique bullpup configuration, providing the versatility of a multi-caliber system in a compact and customizable package.

Desert Tech MDRX rifle dynamic view brown plastic

Attached to the aluminum upper receiver are the action, barrel and cheek-piece assemblies. Desert Tech supplies a lower receiver and handguard made of polymer. A Picatinny rail covers the gun’s topside. The trigger mechanism, magazine well and lower portion of the butt are relegated to the polymer lower receiver.

Rifle receiver metal plastic brown black

A number of bilateral and ambidextrous controls, including dual-sided charging handles that are non reciprocating, safety selectors and magazine release buttons make the MDRX a well-optioned candidate for both left- and right-handed shooters. The MDRX supplies users with two magazine release actuators for increased versatility.

Rifle parts stock bullpup ejection black brown plastic metal

At the range, the Desert Tech MDRX, like many bullpups, is more compact and easier to handle than conventional semi-automatic rifles with the same barrel length. The rear-mounted action is found to improve overall balance with reduction to fore-end weight, which is a boon to shooters that require accessories attached up front. Since the MDRX is multi-caliber adaptable, conversion kits are available separately from Desert Tech—users can easily change between .308 Win., 6.5 Creedmoor, .223 Wylde and .300 Blackout.

rifle parts gas block picatinny rail

Watch our NRA Gun of the Week video above to learn more about the Desert Tech MDRX bullpup rifle.

Desert Tech MDRX (Forward Ejecting) Specifications
Manufacturer: Desert Tech
Action Type: piston-operated, semi-automatic, center-fire, bullpup rifle
Chambering: multi; .223 Wylde, .300 Blackout, 6.5 Creedmoor, .308 Win.
Barrel: 16” to 20”
Lower Receiver: polymer
Upper Receiver: aluminum
Sights: none; Picatinny rail
Trigger: 4.7-lb. pull
Overall
Length: 27.5” to 31.5”
Weight: 8.7 lbs. to 8.89 lbs.
MSRP: $2,099 (base)

Further Reading:
Out of Sight, Peace of Mind: The "Trunk" Gun

Desert Tech MDR Review

U.S. Army Ordnance vs. NRA: The Battle Over the M1 Garand

Tested: Marlin 336 Dark Lever-Action Rifle

Thermal And Night Vision Revealed

Latest

More Suppressors 2
More Suppressors 2

NFA Wait Times Continue to Drop

In early 2021, it took the ATF about 280 days to process a Form 4 NFA transfer. In August 2026, using the recently implemented eForms system, that wait time had dropped to only nine days.

Pelican Air Carry-on Case Review

An industry staple just made air travel more convenient.

The ROSE Program by SIG Sauer: Empowering Women in Shooting Sports Across the Nation

The ROSE Program is a shooting program created specifically for women. It aims to create a community of women in shooting that can learn about shooting and self-defense.

I Have This Old Gun: French MAS-49

Despite being early adopters of several semi-automatic rifles for military use, the French army took several decades to work out a standardized semi-automatic rifle for general service use. The rifle that finally came to being was the MAS-49.

Polite Society Industries Launches with Complete Suppressor Line

"An armed society is a polite society," goes the famous quote, which is also the inspiration behind Polite Society Industries, a new suppressor manufacturer that now has a complete line available to consumers.

NRA-ILA Names Smith & Wesson Official Partner of the 2026 NRA Gun Bus Battleground Tour

Iconic American firearms maker Smith & Wesson will join NRA-ILA on the road as nation's leading firearm group turns out voters ahead of the 2026 midterm.

Interests



Get the best of American Rifleman delivered to your inbox.