The OOW M240-SLR BELT FED SEMI AUTO is a semi-automatic rifle that is based on the M240 machine gun, a gas-operated, belt-fed, fully automatic weapon that is used by the military and law enforcement. The OOW M240-SLR is a re-engineered version of the M240 that fires from a closed bolt and uses standard 7.62 NATO ammunition.


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SKU: OOWM240-SLR Categories: ,


The OOW M240-SLR is a semi-automatic belt-fed rifle that is based on the M240 machine gun design. It is produced by Ohio Ordnance Works (OOW) and is intended for civilian use. The M240-SLR is chambered in 7.62x51mm NATO (.308 Winchester) and offers a semi-automatic firing mechanism, making it legal for civilian ownership in the United States.

  1. Operating System: The M240-SLR operates on a closed-bolt, semi-automatic system, which means it fires one round with each trigger pull. This differs from the fully automatic operation of the military M240 machine gun.
  2. Feed System: Like its military counterpart, the M240-SLR uses disintegrating link belts to feed ammunition. It can accept both 100-round and 200-round belts.
  3. Barrel: It features a quick-change barrel system, allowing users to swap out a hot barrel for a cooler one during extended firing sessions.
  4. Weight: The M240-SLR is a relatively heavy firearm, similar to the military M240. It can weigh around 25 to 30 pounds, depending on the specific configuration and accessories.
  5. Sights: The rifle is typically equipped with iron sights, but it can also be fitted with various optics and sighting systems, depending on the user’s preferences.
  6. Legal Considerations: As a semi-automatic rifle, the M240-SLR is subject to firearms regulations in the United States. Ownership and use are governed by federal, state, and local laws, so it’s essential for potential buyers to understand and comply with these regulations.
  7. Civilian Market: The OOW M240-SLR is designed for civilian enthusiasts and collectors who appreciate the design and historical significance of the M240 machine gun. It is not a military or law enforcement firearm.
  8. Availability: The availability of the M240-SLR and its configurations may vary depending on the manufacturer’s production and market demand. Prospective buyers should contact Ohio Ordnance Works or authorized dealers for information on current models and availability.

Additional information

Weight 960 lbs
Dimensions 53.5 × 16.75 × 8.25 in



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