Mossberg 500 FLEX Tactical 12 Gauge Pump Shotgun – 18.5" Barrel, Modular Stock, OD Green Finish
The Mossberg 500 FLEX Tactical combines the battle-tested reliability of the 500 series with the fast-swap FLEX Tool-Less Locking System, letting you reconfigure stocks, forends, and grips in seconds. Finished in matte olive drab green and weighing just 5.75 lb, this full-size 12 gauge offers a compact 18.5" cylinder-bore barrel, 5+1 capacity, and ambidextrous controls that appeal to both right- and left-handed shooters.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Good – Clean, well-maintained, minor wear marks.
Specific Condition Notes: There are noticeable scratches and blemishes on the exterior surfaces.
What’s Included
- Mossberg FLEX black polymer cruiser-style pistol grip module
- Mossberg FLEX modular polymer forend with Picatinny accessory rails
The shotgun’s FLEX TLS interface at the stock and forend lets you switch from the installed camo stock to the included pistol grip without tools, making it easy to tailor length of pull or transition to a more compact profile for transport.
Its 18.5" carbon-steel barrel wears a fixed cylinder choke, ideal for defensive loads and shorter-range applications where pattern spread matters more than constriction. Dual extractors, twin action bars, and an anti-jam elevator enhance reliability during rapid cycling.
The lightweight aluminum-alloy receiver is drilled and tapped, so adding an optic or rail section is straightforward. A simple front bead sight keeps the sight picture uncluttered for quick target acquisition.
An ambidextrous tang safety sits on top of the receiver, and the Lightning-cut trigger provides a crisp break. Molded checkering on the camo synthetic stock and the ribbed synthetic forend ensure a secure grip in wet or gloved conditions.