Mossberg MSBRG 590RM 12GA 18.5″ SO 10RD BLK
$826.35
Pump-action 12ga tactical shotgun with detachable 10-round magazine and 18.5″ stand-off barrel for home defense and security applications.
9 in stock
Mossberg 590RM, Pump Action Shotgun, 12 Gauge, 2.75″ Chamber, 18.5″ Stand-Off Barrel, Matte Finish, Black, Collapsible Stock, Heat Shield, Top Picatinny Rail, 1 Magazine, 10 Rounds 50218
| Weight | 10.375 lbs |
|---|---|
| Dimensions | 46.750 × 9.250 × 3.750 in |
| Manufacturer | Mossberg |
| Barrel Length | 18.5″ Breacher Barrel |
| Capacity | 10 + 1 |
| Action | Pump Action |
| Finish | Matte Blue |
| Caliber / Gauge | 12 Gauge |
| Overall Length | 39.5″ |
| Caliber | 12 Gauge |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.

Reviews
Clear filtersThere are no reviews yet.