Mossberg 510 Mini Super Bantam 20ga 18.5in Vent Rib
SKU RSR|MS50485
$494.01In stock
Firearm · ships to your FFL
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Overview
The Mossberg 510 Mini Super Bantam 20ga 18.5in Vent Rib delivers a lightweight, adjustable pump shotgun for youth and smaller shooters, with an EZ-Reach forend and Accu-Set choke system for versatile field performance.
Available for delivery across the United States.
The Mossberg 510 Mini Super Bantam 20ga 18.5in Vent Rib is a purpose-built pump-action shotgun for smaller-statured shooters, youth, or anyone who needs a scaled-down scattergun without sacrificing reliability. It pairs a compact 18.5-inch vent-rib barrel with Mossberg’s Super Bantam adjustable stock and EZ-Reach forend, making it a practical choice for field use, target shooting, and upland hunting. This 20-gauge model uses the Accu-Set choke system to handle a variety of loads, and it’s built on the same proven action as Mossberg’s full-size shotguns.
Manufacturer
Mossberg
Model
510 Mini Super Bantam
Material
Synthetic stock with aluminum receiver (per manufacturer specs)
Compatibility
20 Gauge shells, 2.75-inch and 3-inch, Accu-Set choke tubes
Finish
Matte blued barrel, black synthetic stock
Weight
Approximately 5.25 lbs (per Mossberg specifications)
Condition
New
Key Features
Super Bantam Adjustable Stock — Includes a spacer system so you can extend the length of pull as the shooter grows, making this shotgun last for years instead of one season.
EZ-Reach Forend — The forend is positioned closer to the action, giving smaller hands a more natural grip and better control when cycling rounds quickly.
18.5-Inch Vent Rib Barrel — The ventilated rib reduces mirage and provides a clear sight plane, while the short length keeps the gun maneuverable in tight cover or from a blind.
Accu-Set Choke System — Comes with three interchangeable chokes (Full, Modified, Improved Cylinder) so you can dial in pattern density for everything from doves to rabbits.
Dual Extractors & Steel-To- Steel Lockup — Same internals as Mossberg’s full-size 500/590 series, meaning you get proven extraction and a lockup that handles heavy loads without issues.
Who It’s For
This is built for young shooters, smaller-framed adults, or anyone who wants a lightweight 20-gauge that cycles fast and fits right. It’s ideal for introducing new shooters to pump-action shotguns without punishing them with recoil or an oversized stock. Also works well as a truck gun or camp companion due to the short barrel and low weight.
Pros & Cons
Pro: Adjustable stock grows with the shooter, saving you money on a replacement gun later.
Pro: Weighs just over 5 pounds, so it’s easy to carry all day on a hunt or during a class.
Pro: Uses standard Mossberg 20-gauge chokes, so upgrading is easy.
Con: The compact forend and stock may feel cramped for full-size adults with larger hands.
Comparison: Mossberg 510 vs. Remington 870 Express Compact vs. Winchester SXP Compact
Feature
Mossberg 510 Mini Super Bantam
Remington 870 Express Compact
Winchester SXP Compact
Gauge
20 Gauge
20 Gauge
20 Gauge
Barrel Length
18.5 inches
21 inches
22 inches
Stock Adjustment
Spacer system (Super Bantam)
Fixed length of pull (no spacer)
Shorter LOP but not adjustable
Weight
5.25 lbs
6.0 lbs
6.2 lbs
Choke System
Accu-Set (3 tubes included)
Rem Choke (tubes sold separately)
Win Choke (1 tube included)
Forend Reach
EZ-Reach (shortened)
Standard length
Standard length
Price
$441.08
$479.00
$459.00
The Mossberg 510 wins on adjustability and weight, making it the best fit for growing shooters. The 870 is a solid option but heavier and non-adjustable. The SXP is lighter than the 870 but still lacks the spacer system and EZ-Reach forend of the Mossberg.
FAQ
What shells does the Mossberg 510 Mini Super Bantam 20ga 18.5in Vent Rib accept?
It accepts 20-gauge shells in 2.75-inch and 3-inch lengths. Stick with standard field loads for best cycling during break-in; target loads and hunting loads work well after a few boxes.
Is this shotgun suitable for a left-handed shooter?
Yes, but note that the safety is located on the top of the receiver (tang safety), which is ambidextrous. The ejection port is on the right side, so lefties will have shells eject across their field of view—common for pump guns. Some left-handed shooters prefer it; others don’t.
Can I swap the stock for a full-size one later?
Yes. The Mossberg 510 uses the same stock interface as the 500/590 series in 20 gauge. You can replace the Super Bantam stock with a standard 500/590 stock if the shooter outgrows the adjustable setup.
Does it come with a case or lock?
No, the shotgun ships in a box without a case. It does include a cable lock for safety storage (per Mossberg’s standard packaging).
