Mossberg 500 Field/Deer Combo 20ga 26″/24″ 5+1
Video review
Expert review
About this product
The Mossberg 500 Field/Deer Combo 20ga 26″/24″ 5+1 is a two-barrel pump-action shotgun package engineered for dedicated, specialized use in both small game/upland hunting and regulated deer slug zones. It represents a purpose-built tool rather than a generalist firearm, separating the distinct ballistics and sighting requirements of birdshot and sabot slugs into dedicated systems. You're buying two optimized shotguns in one receiver, which is mechanically more sound than trying to make one barrel configuration work across all applications.
What is the Mossberg 500 Field/Deer Combo used for?
This combo is used for lawful hunting in jurisdictions requiring shotguns only, allowing a single receiver to serve as both an upland/waterfowl shotgun and a dedicated deer slug gun. The 26-inch vent-rib barrel with Accu-Set chokes handles 2¾-inch and 3-inch field loads for game like pheasant and grouse, while the 24-inch rifled slug barrel, topped with its included Dead Ringer 2.5x20 scope, is specifically for firing sabot slugs at whitetail deer within typical 100-yard effective ranges. The dual-comb stock aids in cheek weld consistency when transitioning between the smoothbore and scoped barrel.
How does the Mossberg 500 Field/Deer Combo compare to the Stevens 555 Sporting O/U 20 Gauge?
The Mossberg 500 combo is mechanically better for the specific two-role hunting purpose, while the Stevens 555 Sporting 20 Gauge is a superior choice for clay target sports like skeet or sporting clays. The 500’s steel receiver and dual, purpose-engineered barrels (a true slug gun and a true field gun) outperform the over/under’s dual same-length, same-choke barrels for a hunter needing both bird and deer capability. Conversely, the Stevens 555’s faster follow-up shots, balanced swing, and walnut stock make it the better tool for breaking clays.
What does it weigh and what are the dimensions?
It weighs 7.25 pounds unloaded and spans 46 inches in overall length with the 26-inch barrel installed. The receiver is forged steel, contributing to the heft that aids in managing 20-gauge recoil, and the synthetic stock measures approximately 14 inches long from the trigger to the buttplate. The 24-inch rifled slug barrel has a 1:34 twist rate optimized for stabilizing Foster-style and sabot slugs commonly used in shotgun-only zones.
Who is this NOT for?
This is not for anyone seeking a single, do-everything tactical/home defense shotgun or a primary clay target gun. The included 24-inch rifled barrel is useless for defense or clays, and switching barrels takes a 60-second process of removing a magazine tube cap and forend. If your primary need is home defense, a dedicated 18.5-inch cylinder-bore barrel is a better choice. For exclusively clay sports, invest in an over/under like the Stevens 555 designed for that rhythm.
What's in the box?
The box contains the Mossberg 500 receiver with trigger group installed, the 26-inch vent-rib field barrel, the 24-inch fully rifled slug barrel with scope bases, a Dead Ringer 2.5x20 scope already mounted and bore-sighted, three Accu-Set choke tubes (Full, Modified, Improved Cylinder), the synthetic dual-comb stock and forend, and the owner's manual. Note the choke wrench for the tubes and the Allen keys for scope adjustments are included, but you must supply your own 3-inch and 2¾-inch ammunition for testing and zeroing.
Is the Mossberg 500 Field/Deer Combo worth it at $480.99?
At $480.99, it is worth the investment for a hunter in a shotgun-only state who needs credible performance in both field and deer seasons without buying two separate firearms. The cost of a dedicated rifled slug barrel and a quality 2.5x scope alone would approach $250-$300, making this package a value proposition. However, if you only hunt one type of game, you are paying for hardware you will never use, making a single-purpose firearm a more cost-effective choice.
Specs at a glance
Pros & cons
What works
- Includes a dedicated, scope-mounted rifled slug barrel—a $250+ value if purchased separately.
- Weighs 7.25 lbs—manageable for youth or smaller-framed shooters in 20-gauge.
- Accu-Set choke system provides pattern control from Improved Cylinder to Full for field use.
Trade-offs
- Barrel swap requires tools (screwdriver) and takes 60+ seconds—not a quick-change system.
- Dead Ringer 2.5x20 scope is entry-grade; expect limited light transmission in low dawn/dusk conditions.
- Synthetic stock offers no checkering or textured grip zones—can slip when wet.
Key attributes
| upc | 015813540476 |
| manufacturer | Mossberg |
| manufacturer part number | 54047 |
| action | Pump Action |
| atf type | Shotgun |
| barrel finish | Matte Blue |
| barrel length | 26"/24" |
| caliber/gauge | 20 Gauge |
| capacity | 5 + 1 |
| chokes included | Fully Rifled Bore |
| color | BLUED |
| length | 43.375 |
| magazine included | Yes |
| model | 500 |
| package height | 9.0 |
| package width | 3.5 |
| product type | Shotgun |
| safety | Tang |
| shipping weight | 12.35 |
| sights | Bead |
| sights type | Fixed Sights |
Frequently asked questions
- Is it compatible with Mossberg 500 aftermarket parts?
- Yes, the action and receiver are standard Mossberg 500, so aftermarket stocks, forends, and magazine tube extensions from brands like Magpul and ATI will fit. Verify any stock you purchase is for the dual-comb configuration to maintain proper cheek weld alignment with the scoped barrel. The 24-inch rifled barrel uses a proprietary mounting system for the included Dead Ringer scope.
- Does it fit in a standard 52-inch rifle case?
- Yes, with the 26-inch barrel installed, the overall length is approximately 46 inches, allowing it to fit in any standard 52-inch takedown rifle case with room for a cleaning kit. For transport with both barrels, you will need a case with internal dividers or a dual-barrel scabbard style to prevent the metal finishes from contacting and marring.
- How long does shipping take to an FFL?
- Processing and shipping typically take 3-5 business days from Ironclad Armory to your selected FFL dealer via UPS or FedEx Ground, depending on your location. Once the firearm arrives at your FFL, you must complete the ATF Form 4473 and pass the NICS background check before taking possession, which can add 1 hour to several days depending on state laws.
- Can I return it if it doesn't cycle properly?
- Firearms are non-returnable once transferred through an FFL due to federal regulations, but Ironclad Armory provides a 1-year manufacturer's warranty on all mechanical and material defects. If you experience failure-to-feed or ejection issues within the first 500 rounds, contact Mossberg customer service directly for repair or replacement, as outlined in the included manual.
- Does this work with a standard sling swivel?
- The synthetic stock is pre-drilled and fitted with a standard 1-inch quick-detachable sling swivel stud at the butt, and the magazine tube cap includes a second stud mount for the front of a two-point sling. You can attach any standard 1-inch sling, such as those from Blackhawk or Uncle Mike's, without additional tools or drilling.