Unfortunately, many problems with the M16 were exposed during the Vietnam war. Due to problems associated with IMR rifle powder, M16's were prone to jamming, and had notoriously bad firing consistency. The problems were rectified after Congressional inquiries. The M-16 carbine used in Vietnam was called the "XM-177". Recent remodels of the M16 has yielded the M16A2, M16A3, and the M16A4, which have corrected the many problems that their predecessor encountered. | Unfortunately, many problems with the M16 were exposed during the Vietnam war. Due to problems associated with IMR rifle powder, M16's were prone to jamming, and had notoriously bad firing consistency. The problems were rectified after Congressional inquiries. The M-16 carbine used in Vietnam was called the "XM-177". Recent remodels of the M16 has yielded the M16A2, M16A3, and the M16A4, which have corrected the many problems that their predecessor encountered. |