Frequently Asked Questions
Mossberg 930 Barrel for sale
Is the Mossberg 930 discontinued?
Yes, Mossberg discontinued the 930 series and replaced it with the newer 940 model. It no longer appears on Mossberg's website, though used and new-old-stock units remain available through various retailers and the secondary market.
Are Mossberg 930 and 940 barrels interchangeable?
No, 930 and 940 barrels are not interchangeable. The 940 barrel has scallops in the collar near the gas piston that the 930 lacks, making the two incompatible. Do not attempt to swap barrels between these models.
What are the common problems with the Mossberg 930 SPX?
Common issues include extraction failures, feeding problems from magazine extensions, and dwell-timing problems with short barrels and light loads. Some owners report canted sights and burrs on the barrel spring. Ammo preference varies; trying different brands or loads often resolves cycling issues. Warranty service is available.
How many shells can a Mossberg 930 hold?
Capacity varies by variant. The popular 930 SPX holds 7+1 with its extended magazine tube. Some base variants hold 4+1, while extended magazine configurations can hold nine 2¾" shells plus one chambered. Shell length and magazine spring tension can affect actual capacity.
Can you shoot slugs through a Mossberg 930?
Yes, the Mossberg 930 can shoot slugs. Standard full-power slug loads cycle reliably. Mossberg offers the 930 Slugster with a rifled barrel optimized for sabot slugs. Smooth-bore barrels work with Foster-style slugs. Reduced-power loads may cause cycling issues. Always verify your specific barrel configuration before selecting slug type.
What is the difference between a Mossberg 930 and 940?
The 940 is an updated version of the 930 with a chrome-lined magazine tube for smoother cycling, larger forearm vents for better cooling, and a redesigned gas piston system that reduces fouling and maintenance frequency. Both are current 12-gauge semi-automatic shotguns popular in competition and tactical use.
What is the difference between a Mossberg 930 and 935?
The 930 handles 2¾" and 3" shells, while the 935 is chambered for 2¾", 3", and 3½" magnum loads. The 935 has a longer barrel extension and slightly different receiver dimensions to accommodate the longer shells, making it popular for waterfowl hunters needing heavier payloads.
Is a Mossberg 930 reliable?
Yes, the Mossberg 930 is generally reliable. Its boron-nitride-coated internals reduce fouling and extend cleaning intervals. Users report consistent feeding and ignition. Extractors and charging handles may eventually need replacement, but the platform performs dependably for hunting and tactical use.