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Mossberg
590S
$742.00
Available
California Restriction Notice
This item is restricted for standard California customers and may not be transferable in California without a qualifying exemption.
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Mossberg 590S, Optic Ready, Pump Action, 12 Gauge, 3" Chamber, 20" Barrel, Matte Blued Finish, Synthetic Stock, Bead Sight, Receiver Milled for Shield RMSc Pattern Micro Dot Sights, 13 Rounds, Cycles 1.75", 2.75", or 3" 51604
Key Details
Brand
Mossberg
Manufacturer Part Number
51604
UPC
015813516044
SKU
MS51604
Current Stock
24 available
Quantity Updated
Sep 6, 2026 6:47 AM
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Purchase Requirements
- This product requires FFL processing before pickup or transfer.
- Age verification is required before checkout completion.
- California compliance or distributor restriction review may apply.
- Final availability is confirmed at checkout.
In-Store Pickup Required: All firearm purchases must be picked up at our Beverly Hills location after background check completion.
Product Description
Mossberg 590S models set a new standard for shotshell cycling flexibility. Now, we've added the added benefit of optic-ready convenience. Receiver cuts allow 590S shotguns to accept low-profile direct mounting of Shield RMSc-pattern micro dot sights, for improved eye alignment and target acquisition. Cover plate is included when a sight is not mounted.
Features
- Dual Extractors, Twin Action Bars, Positive Steel-to-steel Lockup, Anti-jam Elevator
- Receiver Milled to accept the Shield RMSc-pattern micro dot sights
- MLOK Forend
- Compatible with 1.75/2.75" and 3" Shells"
Specifications
UPC:
015813516044
Manufacturer:
Mossberg
Manufacturer Part #:
51604
Model:
590S
Model (Alt):
Optic Ready
Action:
Pump
Barrel Length:
20"
Capacity:
13 Rounds
Finish:
Matte
Sights:
Bead
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