M-16 Operation And Cycle Of Functioning (1966) 

All you heard when firing an A1 was the bolt and buffer cycling. Sprang!

I'm so glad that I have ear protection!

Your kidding?

No I'm serious. I've never owned or fired an AR 15 type rifle before.

From what I've heard about the forward-assist from friends is some people use it, most don't, some use it professionally, some people like to pretend they're professionals and use it & some people like the idea of having in case they need to use it.

Straight trigger finger is a relatively new principle. GIs were not trained on that in the era of this film. I believe it was Law Enforcement that began that practice but I could be mistaken.

Or yank the charging handle till your arm fell off

I’d have it no other way

Yes. Failure to extract as it's know today. Sometimes the case will split and the rear or case head will be ripped off and the mouth of the case will remain in the chamber rendering the weapon inoperable until the remaining piece of the cartridge is removed by way of a specialized tool appropriately called a broken case extractor.

@vettelover2009 The military never went back to stick powder and the M-16 still uses ball powder..They switched to ball powder because the stick powder could not meet velocity requirements while keeping the chamber pressure to spec..The ball powder changed the bolt velocity ( too high of a cycle rate) as ball powder creates a higher port pressure. They changed the buffer to slow the bolt velocity, prevent bolt bounce malfunctions, chrome lined the bore and chamber and strengthened the extractor tension..They also lowered the calcium carbonate in the powder to lower the carbon fouling..Yes and they trained the soldiers to properly maintain their weapons..

@vettelover2009 A lot of misinformation has been spread throughout the years about the M-16. One of the best sources for the history of the M-16 is (The Black Rifle)..It chronicles the development and history..

@vettelover2009 I know, it took 7 years for someone to finally correct..

@vettelover2009 First off, the book is the Black Rifle written by Blake Stevens and Edward Ezell who also wrote the book Kalashnikov, the arms and the man. He was a renowned gun writer who went to the Soviet Union during the cold war and was allowed to interview Kalashnikov.. Chris Bartocci wrote The Black Rifle 2... Edwars Ezell is the person doing the interviews on the Stoner videos recently released....I have also read The M16 Controversies by Thomas Mcnaugher, The Great Rifle Controversy by (once again Edward Ezell) and Misfire by William Hallahan.. So no, your information was not corroborated by other arms historians..The other powders used to replace the IMR 4475 was Dupont CR8136 and finally WC846.. I thought you or others who read your botched history lesson might be interested in the facts, since there has been a lot of misinformation put out by people who are mistaken. Instead you took it personally for some reason and called me a bum..Enough said..Have a good night..

@vettelover2009 I corroborated nothing, you were wrong. The military dropped the IMR 4475 powder right away and never used it again, just as I stated..No, the information has not changed in that time frame anymore than your ignorance..Watching you come unglued over an exchange of information that proved you wrong is hilarious..How dare anyone correct you..I never thought I would trigger you about this, amazing....You are quite entertaining, but sad and pathetic at the same time..Seek help..

Because NATO, that's why. All things standardized by NATO are in the metric system.