Magnum Research 429 Desert Eagle With Muzzle Break Buy Now

Magnum Research 429 Desert Eagle With Muzzle Break in a corrosion-resistant stainless finish delivers legendary big-bore performance with multi-caliber flexibility. This 6″ Mark XIX ships with both a .50 Action Express barrel and a .429 Desert Eagle barrel so you can switch calibers on the same precision platform. Manufactured using modern CNC machining to tight tolerances, the stainless Mark XIX combines rifle-style engineering, rugged construction, and broad accessory compatibility for collectors and experienced shooters who want versatility and presence.

Overview

The Mark XIX uses a gas-operated system with a rotating bolt to provide secure lockup and reliable extraction under high-pressure magnum loads. The dual-barrel capability lets you tailor ballistics, recoil, and performance to match shooting priorities. A full Picatinny-style accessory rail (from chamber to behind the front sight) accommodates optics and accessories, while anatomically formed black polymer grips promote a consistent two-handed hold for controlled shooting.

Key Features

• Dual-barrel capability: Includes .50 AE and .429 DE barrels for multi-caliber use.
• Action: Gas-operated, rotating bolt semi-automatic for secure lockup and repeatable performance.
• Construction: CNC-machined stainless slide, frame, and barrels for strength and corrosion resistance.
• Accessory Ready: Full Picatinny-style (Weaver) rail for optics, lights, and scope rings.
• Ergonomics: Anatomically formed black polymer grips for two-handed control and consistent hand placement.
• Controls: Standard ambidextrous safeties and user-friendly manual controls.
• Capacity: 7+1 rounds (.50 AE / .429 DE configuration).

Handling & Performance

With a 6″ barrel and an overall length of 10.75″, the Mark XIX provides a long sight radius (approx. 8.5″) for improved aiming with iron sights or optics. The stainless variant’s mass (approx. 72.4 oz empty) helps absorb recoil from powerful cartridges, making follow-up shots more manageable than on lighter handguns. Whether running the .50 AE for maximum energy or the .429 DE for a slightly different ballistic profile, the gas/rotating-bolt system is engineered for dependable cycling when properly maintained.

Maintenance & Practical Notes

High-energy cartridges place demands on moving parts — clean and inspect the gas system, rotating bolt, and barrels after shooting, especially when using full-power .50 AE loads. Follow manufacturer instructions when swapping barrels to preserve headspace and fit; use recommended solvents and lubricants and avoid abrasive cleaners on critical mating surfaces. Because large-bore ammunition can be costly, consider reduced-power practice loads for training and reserve hot loads for range or field use.

Specifications

Specification	Details
Action	Pistol (Gas-operated, Rotating Bolt)
Capacity	7+1
Barrel Length	6 in (includes .50 AE & .429 DE barrels)
Finish	Stainless
Grips	Black Polymer (Anatomical)
Sights	Combat Fixed; Full Picatinny-style Rail
Weight (empty)	72.4 oz (approx.)
Cartridge	.50 Action Express (primary); accepts .429 Desert Eagle barrels
Model	DESERT EAGLE Mark XIX
Overall Length	10.75 in (6″ barrel configuration)
Hand	Right
State Compliance	Colorado Compliant
Type	Centerfire

Accessories & Recommended Upgrades

• Red-dot or low-power optic mounted to the Picatinny rail for faster target acquisition and improved practical accuracy.
• Quality spare magazines and magazine base pads for faster reloads.
• Aftermarket grips or grip sleeves to fine-tune ergonomics and recoil control.
• Barrel swap kit or torque wrench — follow manufacturer torque specs when changing barrels to ensure safe, repeatable installation.

Who Should Buy This?

Collectors, experienced shooters, and hunters (where legal) who value multi-caliber flexibility, precision CNC construction, and a corrosion-resistant stainless finish will appreciate this Mark XIX. It’s a specialty firearm designed for range performance, hunting backups, and display — not for concealed or everyday carry.

Final Thoughts

The Magnum Research 429 Desert Eagle With Muzzle Break Stainless offers exceptional versatility and build quality: two barrels, a robust gas/rotating-bolt system, and full accessory rails make it a practical choice for shooters who want one platform that can do more. If you want a stainless Desert Eagle that switches between big-bore calibers while retaining precision fitment and accessory compatibility, this model is an excellent pick.