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美国计划交付陆军1449门M252 81mm追击炮。该炮在英国的L16A1基础上生产,用于淘汰相同口径的M29追击炮。M252在
The United States plans to deliver 1449 M252 81mm assault rifles to the Army. The gun was produced on the basis of the British L16A1 and was used to eliminate M29 chasers of the same caliber. M252 is here