This 20mm XM27 Powered Cupola Suppressor Assembly is a genuine new old stock (NOS) component from the electrical control system of the XM27 turret system. Identified by Part Number 11644624 and Federal Stock Number 1005-135-2448, this suppressor assembly played a critical role in the control box assembly by filtering electrical interference within the XM27 system.
The XM27 was a remote-controlled powered cupola designed for the M114A2 Command and Reconnaissance Carrier, providing the gunner with improved target acquisition and weapon control under armor. Unlike earlier manually operated cupolas, the XM27 incorporated a motorized control system with electronic components—of which this suppressor was a key part. The suppressor assembly was used to stabilize voltage and reduce electromagnetic interference that could affect the precision operation of the cupola's rotation, elevation, and firing systems, particularly when using the 20mm M139 autocannon (a licensed version of the Hispano-Suiza HS.820).
The XM27 system was notable for its integration of stabilized optics and powered traverse in a light armored vehicle. Although its overall field use was limited, its components—such as this suppressor assembly—are now rare and sought-after by collectors, restorers, and historians focused on Cold War-era U.S. armored vehicle development.
Product Specifications:
Historical Significance:
The XM27 system represents a key moment in the U.S. military's transition toward integrated fire control systems in reconnaissance and light armored platforms. Its components, such as this suppressor assembly, reflect Cold War-era advancements in vehicle electronics and remote weapon station design. This part is ideal for preservation; static display builds, or technical documentation projects.
Ideal For:
Approx length 11", Approx width .1", Approx height .1", 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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