Autocannons / Rotary Guns / Armament Subsystems
Autocannon, Rotary Gun, and Armament Subsystem Parts
Explore parts and equipment associated with military autocannons, multi-barrel rotary guns, and integrated armament subsystems used on aircraft, armored vehicles, naval vessels, and fixed installations. This category covers barrels, breech components, bolts, feed mechanisms, ammunition-handling parts, drives, mounts, recoil components, controls, electrical assemblies, and related hardware. Armament subsystems may combine the weapon with its mounting, feed, drive, control, and sighting equipment. Any ammunition or explosive ordnance represented is inert or deactivated and intended for historical display, collecting, technical study, or restoration reference.
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20mm M3, M24, and Mark 16 Front Recoil Spring Seat
$185.00U.S. 20mm M3/M24/Mk 16 Front Recoil-Spring Seat, P/N B7226815, NSN 3120-00-722-6815 Item Overview This U.S. military surplus component is a front recoil-spring seat for a 20mm automatic cannon. It is...$185.00 -
20mm Mark 12 Gun Feed Cover Plate for the Mark 7 Pneumatic Feed Mechanism
$115.00U.S. Navy 20 mm Mk 7/Mk 12 Feed-Mechanism Cover Plate, P/N 1236046-B, NGF, November 1957 Item Overview This vintage U.S. Navy cover plate was made for a 20 mm aircraft-gun feed system. The base...$115.00 -
.50cal M3 A/C Basic Ejector Spring
$20.00U.S. .50-Caliber M3 Aircraft Machine-Gun Ejector Spring, P/N A7313885, Saco-Lowell, 1954 Item Overview This original U.S. military ejector spring was made for the .50-caliber M3 basic aircraft...$20.00 -
20mm M39 Series Idler Feed Sprocket
$95.00U.S. M39-Series 20mm Aircraft-Cannon Feeder Idler Sprocket, P/N 8401428, NSN 1005-00-305-0731 Item Overview This military-surplus idler sprocket is associated with the ammunition feeder used on the...$95.00 -
20mm M1 and AN-M2 Autocannon Sear Buffer Spring
$75.00Inert 20mm M1/M2 Autocannon Sear Buffer Spring in Original 1952 Package Item Overview This original U.S. military sear buffer spring was made for the 20mm Automatic Gun M1 and the closely related M2,...$75.00 -
20mm M24A1 Gas Cylinder Bracket Key
$125.0020mm M24A1 Gas-Cylinder Bracket Key, B-7771536 Item Overview This U.S. military gas-cylinder bracket key was made for the 20mm Automatic Gun M24A1. The small steel key helped secure the gas-cylinder...$125.00 -
20mm M39A2 and M39A3 Feeder Sleeve Bushing
$125.0020mm M39A2/M39A3 Aircraft Cannon Feeder Sleeve Bushing for F-5 Freedom Fighter, P/N 8401446 Item Overview This original U.S. military sleeve bushing was used in the feeder and rammer mechanism of the...$125.00 -
40mm M5 Helicopter Armament Subsystem M75 Launcher Drive Front Housing Assembly for the M75 Grenade Launcher
$775.0040mm M5 Helicopter Armament Subsystem Launcher-Drive Front Housing Assembly, P/N 11010126, NSN 1010-00-763-1173 Item Overview This original U.S. Army component is the front housing assembly from the...$775.00 -
20mm M39 Right Hand Feeder Link Guide
$115.0020mm M39 Right-Hand Feeder Link Guide, P/N 7184396, NSN 1005-00-718-4396 Item Overview This original military-surplus component is a right-hand feeder link guide for the 20mm M39 aircraft revolver...$115.00 -
20mm M39A3 Receiver End Plate
$575.0020mm M39A3 Aircraft Cannon Receiver End Plate, P/N 8401758, NSN 1005-00-840-1758 Item Overview This military-surplus item is a receiver end plate from a 20mm M39A3 aircraft cannon. Its official name...$575.00 -
20mm Ammunition Can Spring Assembly for the AH-1G Cobra M35/XM35 Armament Subsystem
$145.00AH-1G Cobra M35/XM35 20mm Ammunition-Can Spring Assembly, P/N 8444201, NSN 1005-00-465-8902 Item Overview This original U.S. Army spring assembly was made for the M35/XM35 20mm armament subsystem...$145.00 -
20mm M24A1 Rear Sleeve Bearing
$195.0020mm M24A1 Rear Sleeve Bearing — P/N 7226775 — NSN 3120-00-722-6775 Item Overview This military-surplus rear sleeve bearing was used inside the recoil housing of the 20mm M24A1 automatic aircraft gun...$195.00 -
20mm M61/61A1 Vulcan Recoil Adapter Assembly
$1,695.0020mm M61/M61A1 Vulcan Recoil-Adapter Assembly, P/N 7268312 Item Overview This military-surplus recoil-adapter assembly was designed for the 20mm M61 and M61A1 Vulcan cannon. Two adapters were fitted...$1,695.00 -
M21 Armament Subsystem Left/Right Mechanical Drive Worm-and-Worm-Wheel Gear Set for the UH-1B and UH-1C Huey
$475.001969 U.S. Army M21 Huey Matched Worm-and-Worm-Wheel Gear Set, P/N 7792604, FSN 1005-973-3671 Item Overview This original U.S. Army matched worm-and-worm-wheel gear set was used in the left- or...$475.00 -
M21 Armament Subsystem Gun Deflection Torque Stop
$215.00U.S. Army M21 Huey Gun-Deflection Torque Stop, P/N 7792430, NSN 1005-00-974-9715 Item Overview This original U.S. Army gun-deflection torque stop was used in the M21 helicopter armament subsystem...$215.00 -
40mm M5 Armament Subsystem Type 6000 Airspeed Transducer for UH-1B/UH-1C Huey Helicopters
$275.00Computer Instruments Type 6000 Airspeed Transducer for M5 40mm Armament System, P/N 11697895 Item Overview This Computer Instruments Corp. Type 6000 airspeed transducer was used with the M5 40mm...$275.00 -
20mm M39 Revolver Cannon Gun Charger Detent Assembly for B-57B and B-57C Canberra
$95.0020 mm M39 Revolver Cannon Gun Charger Detent Assembly for B-57B/C Canberra, NSN 1005-00-512-0608 The 20 mm M39 revolver cannon gun charger detent assembly is a documented component of the manually...$95.00 -
M17 Repositioning Machine Latch Pin Assembly for 20mm Hispano-Suiza
$30.0020-mm Repositioner M17 Pin Latch Assembly The 20-mm Repositioner M17 Pin Latch Assembly is a U.S. military replacement latch component identified by FSN 1005-730-7773-A094. It was supplied for the...$30.00 -
40mm M5 Armament Subsystem Spring Stop Assembly
$245.0040mm M5 Armament Subsystem Spring Stop Assembly, P/N 11014592, FSN 1010-755-4894 Item Overview This original U.S. Army spring stop assembly was made for the 40mm M5 helicopter armament subsystem used...$245.00 -
7.62mm M134 Ejection Chute for M28A1 Armament Subsystem
$295.007.62mm M134 Ejection Chute for M28A1 Armament Subsystem, P/N 11690407 The 7.62mm M134 Ejection Chute for M28A1 Armament Subsystem, P/N 11690407 is a U.S. Army helicopter-armament component made for...$295.00 -
20mm M61A1 Vulcan Inner Ejection Guide
$275.0020mm M61A1 Vulcan Inner Ejection Guide The 20mm M61A1 Vulcan Inner Ejection Guide, identified by Army/Springfield P/N 11010759 and General Electric P/N 822D966P1, is a U.S. military component...$275.00 -
Ammunition Booster Sprocket for use with M6, XM16, and M16 Armament Subsystems
$85.00Sprocket for the Ammunition Booster on M6, XM16, and M16 Armament Subsystem. The Sprocket for the Ammunition Booster on M6, XM16, and M16 Armament Subsystem., identified by P/N 11687063 and package...$85.00 -
20mm M39 Operating Compression Spring
$185.0020mm M39 Operating Compression Spring. P/N 7184232 The 20mm M39 Operating Compression Spring, P/N 7184232, is a steel mechanical spring associated with the operating mechanism of the M39 20 mm...$185.00 -
20mm M39 Hand Charger Adapter
$150.0020mm M39 Hand Charger Adapter. P/N 8415323 The 20mm M39 Hand Charger Adapter, identified by P/N 8415323 and NSN 1005-00-525-7375, is a U.S. military aircraft-armament support component associated...$150.00 -
H117-1AC Spring-Loaded Push-Button Rim Latch
$85.00H117-1AC Spring-Loaded Push-Button Rim Latch The H117-1AC Spring-Loaded Push-Button Rim Latch is a Hartwell aerospace access-hardware component designed to retain a door, hood, or removable panel...$85.00 -
20mm M39 Gun Charger Slide Assembly
$195.00Nobles Gun Charger Slide Assembly P/N 11368, FSN 1005-512-0610 The Nobles Gun Charger Slide Assembly P/N 11368, FSN 1005-512-0610 is a U.S. military armament component manufactured by Nobles...$195.00 -
20mm M39 Spring Operating Guide
$175.0020mm M39 Spring Operating Guide, P/N 8401755 The 20mm M39 Spring Operating Guide, P/N 8401755 is a rod-form internal component associated with the operating-spring system of the M39 20mm automatic...$175.00 -
Output Shoulder Shaft for M6 Armament Subsystem
$175.00Output Shoulder Shaft for M6 Armament Subsystem Add a specialized piece of Vietnam War-era helicopter armament hardware to your collection with this Output Shoulder Shaft for the M6 Armament...$175.00 -
20mm Mk12 Drive Slide Guide Pin
$45.0020mm Mk12 Drive Slide Guide Pin U.S. Navy aircraft cannon history to your collection with this 20mm Mk 12 Drive Slide Guide Pin, identified by Part Number 938344 and NSN 1005-00-311-3326. This is a...$45.00 -
20mm M39 LH Cam Switch
$475.0020mm M39 LH Cam Switch Add a hard-to-find piece of Cold War aircraft cannon history to your collection with this 20mm M39 LH Cam Switch, identified by Part Number 8407806 and FSN 1005-525-7361. This...$475.00 -
20mm M39 Spring Lock Retainer
$50.0020mm M39 Spring Lock Retainer This 20mm M39 Spring Lock Retainer, identified by FSN 1005-840-1812 and Part Number 8401812, is a specialized military-surplus ordnance component associated with the...$50.00 -
20mm M61 Vulcan Bolt Clamp
$55.0020mm M61 Vulcan Bolt Clamp This 20mm M61 Vulcan Bolt Clamp, identified by Federal Stock Number 1005-715-9066 and Part Number 7790178, is a specialized military-surplus component associated with the...$55.00 -
XM21 Armament System Door Filler
$195.00XM21 Armament System Door Filler This XM21 Armament System Door Filler, identified by FSN 1005-832-5811 and Part Number 11697556, is a specialized military-surplus component associated with U.S...$195.00 -
Tripod for the M36 Radar Chronograph
$750.00Tripod for the M36 Radar Chronograph This Tripod Assembly for the M36 Radar Chronograph is identified by Part Number 8213856 and NSN 1290-00-863-3194. For collectors of U.S. military test equipment,...$750.00 -
7.62mm M134 / 40mm XM129 Sighting Station for XM28 Armament Subsystem on the AH-1G Attack Helicopter
$6,950.007.62mm M134 / 40mm XM129 Sighting Station for XM28 Armament Subsystem on the AH-1G Attack Helicopter This original 7.62mm M134 / 40mm XM129 sighting station is a scarce surviving component from the...$6,950.00 -
20mm M61 Vulcan Spring for SUU-23/A Gun Pod
$75.0020mm M61 Vulcan Spring for SUU-23/A Gun Pod This new old stock 20mm M61 Vulcan spring for the SUU-23/A gun pod is an original U.S. military surplus component associated with the 20mm Vulcan gun...$75.00 -
20mm M61 Vulcan Extension for SUU-23/A Gun Pod
$325.0020mm M61 Vulcan Extension for SUU-23/A Gun Pod This new old stock 20mm M61 Extension for the SUU-23/A Gun Pod is an original U.S. military surplus component associated with the 20mm Vulcan gun...$325.00 -
20mm M61A1 Vulcan Gear Clutch for SUU-23/A Gun Pod
$375.0020mm M61A1 Vulcan Gear Clutch for SUU-23/A Gun Pod This 20mm SUU-23 Gear Clutch is an original military-pattern component associated with the SUU-23/A 20mm gun pod, one of the best-known external gun...$375.00 -
20mm M61A1 Vulcan Gear for the SUU-16 Gun Pod
$275.0020mm M61A1 Vulcan Gear for the SUU-16 Gun Pod This 20mm SUU-16 Gear is an original U.S. military-pattern component associated with the SUU-16/A 20mm gun pod. Identified by Part Number 11010794,...$275.00 -
20mm M39 Series Guide Track Front Left
$135.0020mm M39 Series Guide Track Front Left This 20mm M39 Series Guide Track Front Left is an original military component for the M39-series 20mm revolver cannon. Identified here by P/N 8415453 with...$135.00