M16 and AR-15 - How firearms work! (Animation)

The amount of 3D modeling software skills is unbelievable

It's one thing to understand how a gun works - but it blows my mind thinking about some point, some time in the past, designers and engineers actually built these things from scratch!

Even if you hate guns, you cannot deny that they are a marvel of engineering.

As someone who struggles with Math, the fact people can visualize how to make the intricate parts of a gun are brilliant. Engineering is amazing. Thanks Eugene Stoner

I’m small arms repair in the army. This has to be one of the best illustrations of the breakdown of this weapon system I’ve seen.

This has more effort put into this than youtube rewind

These guns are more technical than what I expected.

As an instructor, I not only find this graphic simulation useful, I believe that it is the best I've seen. Well done!

The quality of explanations is extremely high.
The quality of section cuts is extremely high.
The dynamics of the machines is completely detailed.
The physics of the mechanism is completely described.

Your talent can generalize to motors, mechanisms, complex processes on any sort of robotics dynamics. The talent and the clarity on these videos made incomprehensible processes transparent. This is what technology and pedagogy can do for education. Can anyone imagine how this could generalize to Kepler motion, astronomy and sun geometry? You found business.

100/100

I must say, I am impressed with the level of clear detail and explanation shown in this video. As a Gunsmith of 38 years as well as a retired Senior Service School Instructor, U.S. Army at Aberdeen Proving Grounds Maryland I have taught this theory in the 8-step in the cycle of function of the AR/M-16 series for many years. With exception of a few minor areas not covered like the gas port/gas block and function of the buffer itself, the animation and your lesson on the cycle of function was fantastic. Bravo sir, bravo.
edit: Posted 07/2020, about one year after introduction of this video. It does appear as though the author has gone back and re-edited this video to address some short coming's of the first release, but hasn't as of this re-post explained how the gas coming back through the gas tube and carrier key interacts with the high pressure chamber formed between the carriers bolt seat and bolt rings and tail that causes the carrier to move to the rear, turning the cam pin in its carrier groove. Nor how the excess gas is vented over board through the two gas exhaust ports on the carriers right side.
The action of the rotating the bolt faces extractor jaw holding the rim of the cartridge casing, aids in breaking the seal of the cartridge casing from the chamber wall before the rotating luging lugs reach the unlock position.
The remaining rearward inertial force continues to propel the carrier/bolt and casing rearward against the buffer spring and buffer assembly guided by the buffer tube. Near the end of the rearward travel the cartridge case clears the chamber face and the plunger type ejector pushing against the case s base under spring pressure pushes forward opposite the grip of the extractor jaw gripping the cases rim.
Thus causing the empty to pivot on it's base and spin clear of the ejection port to the right and against the built in brass deflector project of the receiver on late model AR's.
However should a round of high-pressure round of ammunition "over-gasses" the system. The buffers tail (a polymer insert ) will strike the back of the buffer tube to cushion the blow and halt movement resulting in heavy recoil force. Once all rearward inertial force is expended, the buffer spring will drive all parts forward to feed and chamber the next round.
(wow, that was a mouth full)

I feel like ive learned something and forgot it at the same time

The creator of the M-16 and the AK-47 have met each other in the past and done an interview together. They both liked each other's weapon and complimented each other

Holy shit this is good.

Holy I've taken apart, cleaned, and put together this weapon so many times and yet I still learned something...a nice, well detailed video 👍

This video has more effort than my university's learning materials

AR-15: Needs a little spring loaded mechanism to eject the casing
AK: Ejects the casing with a little steel notch

The metal even has scratches holy shit

One of the best animations that I ever saw. Thank you!

As an AR-15 owner, I'm impressed that all this happens at the pull of a trigger.

Subjects of engineering required to design a gun
1. Theory of Machines ( Mechanisms, Cams & Followers, Springs, Vibration)
2. Machine design & Manufacturing (Design and manufacturing of parts, Metallurgical selection, ergonomics, anthropometric, Measurements)
3. Thermal engineering ( Energy Transfer/ dissipation like Flash hiding, suppression, Heat Transfer and dissipation)
4. Fluid mechanics (Gas movement, flow through nozzle, diffuser for gas operated ones, compressible flow)
5. Optics (Magnification and all about light/ lasers)
6. Mechanics (Uniform Weight, low Centerline CG, muzzle velocity, projectile range (bullet range))
7. CFD ( Modelling and Simulation)
Well that's entire Mechanical Engineering 😲