Rock-ola M1 Carbine .30 Carbine, WWII Era, Parkerized, Arsenal-Upgraded, RIA Marked, 18 in Barrel
This Rock-ola M1 Carbine is a WWII-era example from a scarcer prime contractor, produced in the 1943–1944 window. It features receiver heel marking "ROCK-OLA" and ring marking "U.S. CARBINE CAL. .30 M1," an arsenal-upgraded configuration with the stamped adjustable rear sight, and a Rock Island Arsenal "RIA" rebuild/inspection stamp on the recoil plate. It comes with one 30-round and three 15-round magazines.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling - Intact, well-defined lands and grooves.
Specific Condition Notes: This firearm is in great shape. There are minor, superficial scratches and blemishes. The bore is clean and shiny.
What’s Included
- 1x 30-round magazine
- 3x 15-round magazines
Rock-ola was one of the less common U.S. contractors for the M1 Carbine during WWII, and this example retains correct receiver markings: "ROCK-OLA" on the heel and "U.S. CARBINE CAL. .30 M1" on the receiver ring. The production timeframe aligns with 1943–1944, and the carbine was made in the United States.
The carbine reflects an arsenal-upgraded configuration with the stamped adjustable rear sight. It has the barrel band with integral sling swivel and no bayonet lug, an oval sling/oiler stock pattern, and a wooden upper handguard with the longitudinal sighting groove. The stock is a fixed, straight-grip hardwood type with an oil finish and a checkered steel buttplate.
Construction and finish are period-correct, with a Parkerized steel receiver. The action is semi-automatic, using a short-stroke gas piston with a rotating bolt. It has an 18-inch barrel, a 13.0-inch length of pull, and a 30+1 capacity. Sights are iron: a protected blade front and a stamped adjustable aperture rear with a windage knob.
Rebuild and inspection markings include an "RIA" stamp on the recoil plate, indicating Rock Island Arsenal work. Included magazines cover both an extended 30-round curved type and three standard 15-round types; they are steel detachable box magazines, and specific manufacturer markings were not confirmed.

