Rock Island Armory M5 12 Gauge Pump-Action Shotgun, 20-inch Barrel, Factory Steel Heat Shield, 5+1 Capacity
The Rock Island Armory M5 is a 12 gauge pump-action shotgun with a 20-inch steel barrel and a cylinder bore, built for dependable operation with 2-3/4 and 3-inch shells. This example stands out with its factory steel ventilated heat shield, a single action bar, and practical matte dark gray finish, plus a damascened bolt and receiver-top anti-glare serrations that add functional detail.
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: This firearm is in solid shape. It has various cosmetic imperfections, scratches, blemishes, and areas of finish loss. The bore remains clean and shiny.
What’s Included
- Rock Island Armory M5 12 Gauge pump-action shotgun
The 20-inch steel barrel uses a cylinder bore and a brass front bead for straightforward aiming. The chamber is sized for 3-inch shells, allowing the use of both 2-3/4 and 3-inch loads. Capacity is 5+1 with 2-3/4-inch shells (4+1 with 3-inch shells), giving flexible load options.
Factory features include a ventilated steel heat shield over the barrel and receiver-top anti-glare serrations. The bolt carries a damascened (engine-turned) finish, and the action runs on a single action bar for smooth cycling. A magazine cap with a barrel/magazine band secures the assembly.
The shotgun wears durable polymer furniture: a ribbed polymer fore-end and a stock with a textured wrist and rubber buttpad. Length of pull is approximately 14.0 inches. Controls include a cross-bolt safety.
The matte dark gray finish covers the receiver and barrel. Markings include the RIA crest and model on the receiver, along with proof marks reading "PHILIPPINES" and "PROOF TESTED." Overall length is about 40 inches, and empty weight is about 7.5 lb. The serial number is located on the bottom of the receiver.