• Light weight and stable armament platform for light aircraft

  • Rapid reconfiguration without tools

  • Modular components


Built to meet the most stringent of US military requirements, CFD International’s Ordnance Mounting System (OMS) has been providing US troops protection in combat since 1987. Originally developed for the U.S. Army’s 160th Special Operations Aviation Regiment (SOAR) MD-500 “Little Bird” fleet, this patented, combat-proven system is now available in several configurations for greater versatility.

CFD’s innovative designs are intended to deliver maximum flexibility. Modularity of the OMS - combined with high-capacity ammunition magazines - allows for a variety of weapons configurations to suit a multitude of mission requirements.

Features & Benefits

  • Low Weight - supports 30 times its own weight, giving the customer more fuel and firepower.
  • Stiffness - constructed from materials with high specific stiffness, increasing armament stability to minimize dispersion.
  • Compatibility - with up to six store locations, the customer can equip the aircraft with 7.62 to 30mm machine guns, rockets and missiles.
  • Small Footprint - the outboard stores fold over on top of the center section, making the aircraft narrower for dense packing.
  • Rapid Reconfiguring - the system can be rapidly installed, reconfigured or removed
  • High Capacity Magazines - up to 3,000 rounds of 7.62mm or 600 rounds of .50 cal ammunition per magazine.
  • Troop Carrying Capability - one variant of the OMS provides troop carrying seats on both sides of the aircraft. Each bench can carry three people or one litter.

Configuration Comparison

« OMS 2.0 » « Bell 407 OMS » « Bell 412/H-1 OMS » « MD 500/530/H-6 OMS » « MD 500/530/H-6 ECS » « MD Explorer OMS »
Unique Characteristics
  • 4-stores
  • Slide-in ammo can
  • Integrated feed chutes
  • Boresightable M134 mount
  • Griffin tip store
  • 2- or 4-stores
  • 6-store
  • 2 crew serve stores
  • Crew-serve GAU‑19
  • 4-stores
  • Crew-serve pintle compatible
  • 12,000 round 7.62mm capacity
  • 2,400 round .50 cal capacity
  • Troop carrying platform
  • Slick cargo floor
  • Troop carrying platform folds into aircraft
  • 4-stores
Bell 407
MD Explorer
Weapon Store Locations
Crew Serve Locations
Quick Release
Folding Outboard Store
7.62mm Ammo Capacity 6,000 12,000 12,000 12,000 12,000
.50 Cal Ammo Capacity 1,200 2,400 2,400 2,400 2,400
Cargo Weight Capacity (lbs) 1,500
IR Camera Mount
External Fuel Cell Mount
.50 Cal Mount
30 mm Mount
M134 Mount
MK19 Mount
M260/M261 Mount
Griffin Missile Mount

Mil-Spec Compliance

  • Military aerospace grade workmanship.
  • Compliant with environmental requirements (solar radiation, high/low/shock temperature, altitude, humidity, rain, ice, salt fog, fungus, sand, and dust) per MIL-STD-810G.
  • Compliant with explosive atmosphere requirements per MIL-STD-810G.
  • Compliant with human factors requirements per NATICK/TR-89/044 and MIL-STD-1472G.
  • Gunfire clearances per MIL-STD-1289.
  • Compliant with non-operating environment requirements (high/low/shock temperature, and altitude).
  • Compliant with induced environments [functional/bench-handling/crash-hazard shock, 6G’s acceleration, fluid susceptibility, structural vibration (5% separation), and gunfire vibration (1 hour/axis)].
  • Fatigue life IAW MIL-STD-882D.
  • Compliant with structural requirements (flight/landing/ground/transport loading conditions, airframe crash criteria, floor loading, interface load limits, and dynamic stability).
  • Compliant with military aerospace materials, processes and parts requirements.
  • Ground resonance per AVNS-PRF-10002.
  • Compliant with E3 requirements (lightning, EMC, EMI, ESD, and electrical bonding).
  • Compliant with MIL-STD-704F electrical requirements (non-essential busses only, fuse/circuit breaker, 115 VAC, 28 VDC, exported transients, voltage spike, dielectric withstanding voltage, insulation resistance, grounding requirements, shield grounding, wire shields, primary power returns, secondary power returns, signal returns, shielding gaskets, E3 hardness, and molded harnesses).
  • Product marking per MIL-STD-130N.
  • Interchangeable per MIL-I-8500D.
  • FOD resistant.
  • Flaw tolerant.

Note: typical spec compliance shown above; actual compliance varies by product.