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United States Army presents TF9–4619. February 1973. Rifle: M16A1 Operation. Cycle of Functioning and Immediate Action. This is a 1950’s era, black and white, military training video on how to properly use and maintain the M16A1 rifle. The film also addresses immediate action to remedy some common malfunctions with the weapon. The film opens to a rifle spinning on a table axis. Soldiers in the field with artillery fire. The soldier’s rifle jams 1:00. The soldier falls. A close-up on the M16A1 rifle, 1:30. A soldier demonstrates how to load the M16A1 1:40. The magazine is inserted into the rifle 2:07. The soldier presses in on the magazine catch button 2:20. Demonstration on how to remove the magazine 2:24. The soldier demonstrates how to operate the selector lever 2:40. A demonstration on how the hammer is locked for safe use is shown 2:55. The soldier demonstrates firing the weapon 3:23. The soldier demonstrates how to use the weapon in automatic mode 3:40. The soldier releases an empty magazine and reloads a full magazine 4:00. There is an animation showing the eight steps of using the rifle 4:30. The first section is on “feeding” 4:51. There is a demonstration on how to feed the rifle 5:20. The next step is “chambering” 5:35. There is a demonstration on how to chamber the rifle 6:00. The next step is “locking” 6:30. A demonstration follows on how the firing bolt is locked into the rifle 7:05. The next step in the demonstration is “firing” 7:17. A demo on Semi-automatic firing is first 7:25. A demonstration on semi-automatic firing 7:50. After firing, “unlocking” takes place 8:05. There is a slow-motion demonstration on how unlocking takes place 8:20. The cam pin moves on the cam track 9:30. The demonstration on “extraction” 10:12. The extractor grabs the case and pulls it from the chamber 10:40. The next step is “ejection” 10:59. A slow-motion and high speed photography show how bullets are extracted from the rifle 11:20. A demonstration on “cocking” begins 11:45. The selector is moved to the auto position on the rifle 12:50. A close-up of the automatic firing mechanism is shown 13:40. A soldier demonstrates the automatic firing of the rifle 14:40. The eight steps of operation cycle of functioning for the M16A1 rifle are put on the screen 15:26. They are: feeding, chambering, locking, firing, unlocking, extraction, ejection and cocking. A summary of the 8 steps of the operation cycle of functioning begins, 15:35. A soldier fires the rifle 17:25. A soldier demonstrates the eight steps of operation cycle of functioning for the M16A1 17:45. Cycles of Functioning. The soldier must understand the rifle components and the mechanical sequence of events during the firing cycle. The eight cycles of functioning (feeding, chambering, locking, firing, unlocking, extracting, ejecting, and cocking) begin after the loaded magazine has been inserted in the weapon. The M16A1 is an early Cold War assault rifle of US origin. The M16 was a giant leap forward in firearms design and the first standard issue assault rifle adopted by US forces. the M16's design stems from the ArmaLite AR-15, but the name Colt is best known for producing the first generation of the M16 family. We encourage viewers to add comments and, especially, to provide additional information about our videos by adding a comment! See something interesting? Tell people what it is and what they can see by writing something for example like: “01:00:12:00 -- President Roosevelt is seen meeting with Winston Churchill at the Quebec Conference.“ This film is part of the Periscope Film LLC archive, one of the largest historic military, transportation, and aviation stock footage collections in the USA. Entirely film backed, this material is available for licensing in 24p HD and 2k. For more information visit
