M-14

[em-fawr-teen, -fohr-]

noun, plural M-14's.

a fully automatic, gas-operated, .30 caliber rifle developed from the M-1: replaced the M-1 as the standard U.S. Army combat rifle.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for m-14

Historical Examples of m-14

One for the M-1 rifle and the other for the carbine—rather, this is the M-14, the new one.
Warren Commission (8 of 26): Hearings Vol. VIII (of 15)
The President's Commission on the Assassination of President Kennedy
I am not familiar with the difference between the M-14 in its accuracy and the 1906 Springfield.
Warren Commission (3 of 26): Hearings Vol. III (of 15)
The President's Commission on the Assassination of President Kennedy