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The M129 is a 40 mm automatic grenade launcher that was used as an aircraft weapon in United States service. It was developed from the earlier M75 and was capable of using both the high-velocity 40x53 mm grenade and the lower velocity 40x46 mm grenade.〔 ==Overview== The M129 was a redesign of the M75 grenade launcher that featured reduced recoil and improved mounting and provided an increased rate of fire of up to 400 rpm compared to 225 rpm for the M75. The M129 was used with the chin-mounted M28 series armament subsystem used on the AH-1G, AH-1Q, MOD AH-1S, and production AH-1S Cobra. The M129 was also used on the: *AH-56 Cheyenne on the XM51 *UH-1H Huey on the XM94 *OH-6A Cayuse on the XM8 *OH-58 Kiowa light observation helicopters on the XM8 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「M129 grenade launcher」の詳細全文を読む スポンサード リンク
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