This New Old Stock 40mm M129 Trunnion Housing Assembly / Ammunition Roller is a rare and essential part of Cold War-era military aviation. Perfect for historical collections, educational display, or restoration projects, it provides a genuine link to the precision engineering behind America’s rotary-wing armament systems.
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Complete your military aviation collection or restoration project with this New Old Stock (NOS) 40mm M129 Trunnion Housing Assembly / Ammunition Roller, part number 11014620 and Federal Stock Number 1010-866-9413. Engineered for the advanced M129 grenade launcher, this trunnion housing assembly and ammunition roller played a crucial role in the smooth operation and precise alignment of the launcher. The M129 was a refined redesign of the earlier M75, with notable improvements in mounting, recoil reduction, and a boosted rate of fire, reaching up to 400 rounds per minute compared to the M75’s 225 rpm.
Key Features:
Essential M129 Component: This trunnion housing assembly and ammunition roller was vital to the M129 launcher’s firing stability and ammunition feed efficiency, enabling seamless operation and accuracy. Widely deployed on the AH-1 Cobra helicopter series—including the AH-1G, AH-1Q, MOD AH-1S, and production AH-1S—the M129 provided high-rate support fire, making it an indispensable part of close air support missions.
Historical Importance: The M129 was used extensively in Cold War-era combat operations, mounted on the M28 series armament subsystem for the AH-1 Cobra and the XM51 subsystem on the AH-56 Cheyenne. These systems brought enhanced firepower and precision to U.S. forces, ensuring the launcher’s success in tactical environments and establishing it as a reliable asset in modern rotary-wing combat.
New Old Stock Condition: This trunnion housing assembly is preserved in its original, unused condition, retaining historical authenticity and offering collectors a pristine component for display or restoration. Its NOS status makes it a valuable addition to collections and restoration efforts focused on military aviation technology.
Product Details:
Condition: New Old Stock, unused and in excellent condition
Part Number: 11014620
FSN: 1010-866-9413
Compatibility: Specifically designed for the M129 grenade launcher
Collector’s Appeal: Perfect for military historians, ordnance collectors, and aviation restoration professionals seeking authentic components from iconic U.S. military aircraft
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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