Offered here is an original Cam-Extractor for the 20mm M39 Revolver Cannon, available in left-hand or right-hand, selectable from a dropdown menu. This component is an essential part of the M39's operating cycle during high-speed firing sequences. These are genuine U.S. military surplus items in very good condition, ideal for system restorers, aviation museums, or collectors of Cold War aircraft weaponry.

Each cam-extractor is made to exacting government specifications to withstand the punishing stresses of autocannon use aboard high-performance jet aircraft. Choose from the following variants:

Right-Hand Cam-Extractor
- P/N: 7184338
- FSN: 1005-718-4338
Left-Hand Cam-Extractor
- P/N: 7184339
- FSN: 1005-718-4339

Historical Background – The M39 Revolver Cannon

The M39 20mm Revolver Cannon was the standard aircraft-mounted autocannon of the U.S. Air Force from the 1950s through the early 1970s. Firing the 20×102mm round at up to 1,500 rounds per minute, it served as the primary gun armament for notable Cold War-era aircraft, including the F-86 Sabre (later variants), F-100 Super Sabre, F-101 Voodoo, F-5 Freedom Fighter, and several experimental platforms.

Inspired by German WWII revolver cannons, the M39 employed a single-barrel, gas-operated rotary chamber system, making it faster and more reliable than the Browning-based aircraft guns it replaced. Components like the cam-extractor ensured precise cycling of ammunition, a critical function at high firing rates and under the extreme stress of flight conditions.

While later succeeded by the six-barrel M61 Vulcan, the M39 remains a significant milestone in American aircraft gun development. These extractors are hard-to-find legacy components with enduring historical and technical value.

Product Details

Item: M39 Revolver Cannon Cam-Extractor
Options: Left-Hand (P/N 7184339) or Right-Hand (P/N 7184338)
Condition: Original U.S. military surplus
Fitment: Compatible with 20mm M39 cannon systems
Era: Cold War / Jet Age Aviation

Perfect For:

Aircraft weapon system restorations
Aviation museums and static display builders
Cold War ordnance collectors
Military surplus part resellers
Technical training programs

Whether you're sourcing operational spares or enhancing a historically accurate restoration, these M39 cam-extractors are a key part of aviation armament history.

Approx length 4", Approx width 1", Approx height .2", Approx weight .1lbs.

Pictures are stock images of our inventory. Unless otherwise noted, you will not be receiving the exact item shown in the pictures. The pictures are representative of the item's general condition. The item you receive might be slightly better, or worse, condition than was shown in the pictures.

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