Mossberg 930 JM Pro-Series Tactical Class 12 Gauge Semi-Auto, 24 in Vent Rib, 9+1 Capacity, Modified Accu-Choke, Fiber-Optic Bead
This Mossberg 930 JM Pro-Series Tactical Class stands out with competition-focused features and a proven gas-operated action. It pairs a 24-inch ventilated-rib barrel and Accu-Choke system with a modified choke installed, an extended 9+1 magazine with clamp, and fast, oversized controls. The receiver is drilled and tapped with filler screws, and the synthetic stock and forend wear a gray scale-pattern hydrographic finish. Made in the United States, it is purpose-built and ready for serious use.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Not applicable - smoothbore.
Specific Condition Notes: This firearm is in great shape overall, with minor scratches and blemishes on exterior surfaces. The bore is clean and shiny.
What’s Included
- Mossberg 930 JM Pro-Series Tactical Class 12 Gauge shotgun
- Accu-Choke modified tube installed
- Barrel/magazine clamp (installed)
Built on Mossberg’s gas-operated 930 platform with a dual-gas system, this JM Pro-Series Tactical Class model is configured for high-efficiency handling. It features an extended 9+1 magazine, an oversized bolt-release button, and an extended, knurled charging handle, along with an enlarged and beveled loading port for easier loading.
The 24-inch barrel uses a ventilated rib and Mossberg’s Accu-Choke system, with a modified choke tube installed. A red fiber-optic front bead provides a clear, bright aiming reference. The extended magazine is secured with a barrel/mag clamp for added stability.
Furniture consists of a synthetic stock and forend in a gray scale-pattern hydrographic finish with molded texturing. A recoil pad and a rear sling swivel stud are integrated, and the length of pull measures 14 inches.
The receiver is drilled and tapped and currently fitted with filler screws. Markings include “JM PRO-SERIES / Tactical Class” and “MOSSBERG / NORTH HAVEN, CT U.S.A. / 930 12 GA.” The barrel and magazine tube wear a matte-blued finish with an anodized receiver. Overall length is approximately 44.5 inches with an approximate weight of 7.75 pounds. Chambering accepts both 2 3/4-inch and 3-inch shells.




