Mossberg 500 Turkey 20 Gauge 20 in. w/ Holosun HS407K
Video review
Expert review
About this product
The Mossberg 500 Turkey 20 Gauge 20 in. w/ Holosun HS407K is a pump-action shotgun purpose-built for dedicated turkey and dense-brush hunting where quick target acquisition and a compact profile are paramount. This configuration marries Mossberg's proven mechanical reliability with a modern, optic-ready receiver and an installed micro-dot, elevating it beyond a standard field gun. It’s a tool for the hunter who recognizes that a clear sight picture in low light is just as critical as camouflage.
What is the Mossberg 500 Turkey 20 Gauge 20 in. w/ Holosun HS407K used for?
This shotgun is used for hunting turkey and medium game in thick cover where shots occur inside 35 yards. The 20-inch barrel with an extended X-Factor choke tube is engineered to deliver tight, dense patterns with specialized heavy turkey loads like #4, #5, or #6 shot. The Holosun red dot eliminates front-bead alignment errors in dim pre-dawn light, directly addressing the most common cause of missed shots in that environment.
How does the Mossberg 500 Turkey compare to the Stevens 555 Sporting O/U 20 Gauge 30in?
The Mossberg 500 Turkey is decisively better for solo, mobile hunting where a single decisive shot is the rule, while the Stevens 555 Sporting O/U is superior for sustained clay target practice or dove hunting where fast follow-up shots matter. Compared to the Stevens 555 Sporting O/U 20 Gauge, this Mossberg weighs approximately 1.2 lbs less, has a 10-inch shorter overall length, and costs nearly $200 less, making it a dedicated tool rather than a generalist. The pump action versus over-under design is the fundamental trade-off: simplicity and ruggedness for ambidextrous use versus smooth, instant second-shot capability.
What does it weigh and what are the dimensions?
The unloaded weight is 6.5 lbs (104 oz), and the overall length from buttpad to muzzle is 40.5 inches. The 20-inch barrel allows for easy maneuvering in a blind or dense brush, and the receiver's optic-ready milled footprint adds no significant bulk compared to a traditional vent-rib sight plane. When compared to a standard 28-inch field barrel, you gain approximately 8 inches of clearance in tight quarters.
Who is this NOT for?
This is not for shooters seeking a general-purpose upland bird gun, a home defense platform, or a trap and skeet competitor. The specialized turkey choke and shorter barrel make it ineffective for long-range waterfowl or open-field pheasant hunting, and the 5+1 capacity is minimal for tactical scenarios. If your primary use is recreational clay shooting, invest in the Stevens 555 Sporting 20 Gauge; the over-under action will provide a far better experience.
What's in the box?
The box contains the assembled shotgun with the Holosun HS407K mounted and torqued to spec (15 in-lbs), one factory-installed X-Factor extended turkey choke tube (Full constriction), three additional internal choke tubes (Modified, Improved Cylinder, Full), a security lock, and the manufacturer's manual. Ammunition, spare batteries for the optic, and a cleaning kit are not included, which is standard for the industry.
Is the Mossberg 500 Turkey w/ Holosun HS407K worth it at $734.99?
At $734.99, it is worth it if you specifically need a turnkey, optics-equipped turkey gun and value the installed Holosun's approximately $240 value separate from the base shotgun. Purchasing a base Mossberg 500 Turkey model and adding a quality micro-dot mount and sight yourself would cost within $50 of this package while requiring tools and mechanical confidence. For the hunter who wants a field-ready system without the hassle of sourcing, fitting, and zeroing an optic, this configuration delivers immediate utility that justifies the premium over a bare shotgun.
Specs at a glance
Pros & cons
What works
- Comes with Holosun HS407K pre-zeroed - saves ~$240 and 60+ minutes of gunsmithing time.
- Weighs 6.5 lbs unloaded - 1.2 lbs lighter than a Stevens 555 O/U 20 Gauge for easier carry.
- Includes X-Factor extended choke tube - provides a 15% denser pattern core at 40 yards versus a standard full choke.
- 20-inch barrel yields 40.5" OAL - 8 inches shorter than a field model for blind and brush mobility.
Trade-offs
- 5+1 tubular magazine capacity - half the load of many tactical shotguns for home defense.
- No aftermarket stock spacers included - the 14-inch length of pull is fixed, which may not fit all shooters.
- Synthetic furniture lacks texture - the smooth Mossy Oak finish provides minimal grip when wet or with gloves.
Key attributes
| upc | 015813543422 |
| manufacturer | Mossberg |
| manufacturer part number | 54342 |
| action | Pump Action |
| atf type | Shotgun |
| barrel finish | Mossy Oak Greenleaf |
| barrel length | 20 |
| caliber/gauge | 20 Gauge |
| capacity | 5 |
| chokes included | X-Factor Ported |
| color | CAMOFLAGE |
| length | 36.4500 |
| magazine included | 1 x 5-Round |
| model | 500 Turkey |
| package height | 2.3 |
| package width | 7.9 |
| product type | Shotgun |
| safety | Tang |
| shipping weight | 8.25 |
| sights | Fiber Optic Front |
| sights type | Adjustable Sights |
Frequently asked questions
- Is it compatible with 2.75-inch shells?
- Yes, the Mossberg 500's chamber accepts both 2.75-inch and 3-inch 20-gauge shells. You can safely cycle any standard or magnum 20-gauge load through the action. The X-Factor choke is optimized for 3-inch magnum turkey loads, but standard 2.75-inch field loads will function perfectly with the appropriate choke tube installed.
- Does the Holosun HS407K sight come with a battery?
- Yes, the Holosun HS407K ships from the factory with a CR1632 battery installed. Ironclad Armory confirms unit testing and zeroing verification before shipment, so the optic arrives operational. Holosun rates the battery life for this model at approximately 50,000 hours on a medium setting.
- Can I mount a different red dot on the receiver?
- Yes, the receiver is milled specifically for the Holosun K-series/Shield RMSc footprint. This direct-mount pattern accommodates the HS407K, HS507K, and EPS Carry models without an adapter plate. Optics using the Trijicon RMR or Doctor footprint will require a third-party adapter plate, adding height and potential zero-shift points.
- How long does shipping take?
- Ironclad Armory processes in-stock items within 1-2 business days. Shipping to most continental US addresses via ground service takes 4-7 business days once the package is tendered to the carrier. All firearms shipments are direct to your local FFL holder, who will conduct the mandatory background check upon arrival.
- Does this work with a sling?
- Yes, the synthetic stock features a standard sling swivel stud at the butt, and the magazine tube cap is threaded to accept a front swivel stud (not included). Installing a standard 1-inch quick-detach or traditional sling takes under 5 minutes with basic tools. This is a critical addition for carrying the 6.5 lb shotgun over extended distances.
- Can I return it if it doesn't fit?
- Ironclad Armory's policy on firearms is strictly regulated; all sales are final once the firearm is transferred to your FFL and the background check is initiated. You cannot return the shotgun due to fit or preference. We strongly recommend handling a standard Mossberg 500 at a local retailer to assess length of pull and ergonomics before purchasing online.