How Select Fire Mechanisms Work in Firearms 

dont worry i know,its guns disambelly world

@@George-pp4vr disambelly ?

CAN ANYONEPLEASEHELP!?!?! Ok so with a ar-15 p80 in 556 and when the trigger goes forward it doesn't release from the first catch(hook) so the hammer is unabletobe released by pullingthetrigger... so its not together yet but the trigger assembly is in and when the hammer is pushed down it hooks but you either have to push the trigger forward a very small amount and it releases and resets allowing the hammer to drop when the trigger is pulled... it also works if the selector switch is moved from fire to right around half way to safe. At that point it releases resetting then you put the selector back on fire and it is able to fire...it only has to go half way not all the way to safe. this happens every time... so should be working correct? Or does the upper have to be on for it to work properly? Some people said they had this problem because of a small burr on the hook so it wouldn't reset until they sanded it down smooth. don't think that is the problem because it's already been sanded it down... does ANYONE HAVE ANY IDEAS ON HOW TO FIX THIS AT ALL? PLEASE LET ME KNOW... Thought about getting a drop in style trigger but they're a little expensive right now. Not understanding why what is already here won't work... EVERYTHING was picked up at the same time from the same person and there was no shortage of people getting the same thing and MANY were coming back after a prior purchase not just first time buyers! Asking around everyone had nothing but good things to say about their prior purchases/builds. Please if anyone can help it would be HIGHLY APPRECIATED!!!

Though I appreciate the effort, it drives me nuts when there’s a misrepresentation of what the parts are called and their functions. I’m not much of an AK guy but I understand the AK trigger (Semi and Auto).

I'm not sure why the disconnect needs to pivot independently of the trigger and sear.

@@smorrow If the disconnect's rotation was locked to the trigger's rotation, it wouldn't be able to catch the hammer to allow semi auto firing. And the auto sear rotates independently to restrict the hammer from falling until the bolt is fully in lockup, to prevent hammer follows or out of battery detonations.

Thank you. I was just about to mention that

Toki -EJ1 I didn't know that. I always thought there was only two different set ups. Semi and Auto and Semi and Burst.

And we used to call druggies stoners! The Eugene Stoner had some creds.

That’s exactly what I was thinking!

It's actually a "game" on steam

@@skinnygunsmith7565 it doesnt distract from how he made it all come together. Just displaying the game wouldnt have served as much of a purpose

@@joshhill4903 ... This is the game you take apart and rebuild guns

I heard the Kalashnikov derided as copy of the STG-45.

ONLY good thing to ever come out of Russia 🪆

@The other Archer thats complete bs The rifles look similar externally but have absolutely nothing in common by function

@The other Archer Different to you yeah... I actually did.

@The other Archer what you are talking about is a very common myth in the gun world similar to A 50cal flying close by will kill you The ak/doesnt jam has a higher mud resistance than the m16 All these are common gun myths

No, in semi-auto mode, the disconnect catches the hammer, preventing the hammer from going forward until you reset the trigger and then pull the trigger again

Recoil spring? A weak recoil spring makes the gun cycle slowly and firing more harsh

Exactly. Nowhere is there a part in any gun called 'intent' to make it sentient, subject to criminal sanctions.

From what I've gathered from people who have used the gun, it does not reset, and that was one of the reasons the burst mode was dropped in favour of semi-auto and full-auto

WoOsKii 1 if you fire 1 shot in burst mode and pull the trigger again two more will go off. Fire 2 and next trigger pull one will go off.

@@pukalo And burst has reappeared in the M-4 because Privates use too many boolits in auto. At least my E-7 friend told me they were using burst when he was in the sandbox during the 20teens.

No you need to install the auto sear. Otherwise you would just have hammer follows which would essentially render the firearm useless

This is also referred to as "drilling the 3rd pin" and according to the atf whether or not you have installed an auto sear or even own one, the moment that the 3rd pin is drilled on the receiver you are in possession of a machine gun. Highly HIGHLY illegal. 10 years and 250k dollar fine. Not even remotely close to being worth it. Save up 30k for a pre 86 machine gun, get an FLL with a class 3 SOT license. Or move to a 3rd world country with no gun laws.

World of guns i think.

Unfortunately if you remove the "bend" it will prevent the lever from being pulled forward to disengage from the hammer essentially rendering the firearm inoperable and require you to have to replace the bolt. If what I see is correct at 7:08, you would have to file the back of the seer (rear hook) flush with the back of the trigger to make it impossible for the weapon to achieve full auto making it essentially safe/semi/semi instead of safe/auto/semi.

@@MrRangiku01 thank you for making it clear for me. Ak47 is clearly can't be converted to semi auto just by filing off the bolt. I have another question about m4a1. What if I place a semi auto bolt in a fully automatic m4? Will it not stop the fully auto mode to work? Bcz semi auto bolt will not disengage the auto sear and the hammer will not be released in auto mode. I can have a separate full auto bolt if I want to shoot in auto mode. Otherwise just keep the semi auto bolt in the gun to keep it as a semi auto gun. In my country laws are not that strict and if this thing works I can have two bolts.

@@KK-px4hh it would be less expensive to replace the full auto safety with one that's semi auto only. when installed, the semi safety will not disengage the disconnector from its primary purpose even when flipped to the auto position. as a result, the auto sear never gets involved in the firing cycle and no wear and tear on receiver's pin hole nor the auto sear assembly. the pistol grip should be removed to avoid stress damage to the receiver via the safety detent.

@@tomacton6718 If it works then this is the best and cheapest option i guess Bcz an extra m4 bolt will cost a lot.

What if we remove the hook for the semi? Does it make it into full auto if theres nothing holding the hammer back?

It looks like the tail on the disconnect that would normally interact with the selector switch lever is missing on off-the-shelf AK's

Well, you’re missing a lot. Normal rifles, don’t have the 3rd pin holes required. You can’t just file a safety notch, because the main pieces for FA are not even installed in most rifles. You can’t just add a full auto hammer with the notch to your rifle and it’s suddenly working. All of these parts, require a 3rd hole to be drilled in the receiver and the parts added. You can buy the parts online easy to convert, but if you drill the 3rd hole in your receiver without proper paperwork, tax stamp, 07/02 FFL or an SOT permit, it’s a felony. But creating a full auto by just filing something down is a myth. The actual mechanical pieces are missing to even do it. Anything else, and you’ll have issues with the bad guys. The NFA needs to be abolished, but with our Current political climate In the US, we will never elect lawmakers who will be pro gun enough to undo the damage. It really sucks. Also, with the psychotic lunatics who’ve been shooting people up, we will never regain our rights to full unhindered 2nd amendment rights. I’m the type, that I believe if you’re rich and responsible enough, you should be able to get an M1A1 Abrams tank or a fully loaded F15 Strike Eagle fighter jet. Our founding fathers didn’t put a limit on our second amendment. I only draw the line at weapons of mass destruction. I believe chemical and germ warfare, as well as nuclear technology should be eliminated worldwide. Responsible, upstanding American citizens should own everything our military owns

Prison is what prevents most of us in the US from making such mods.

@@mattw7949 And a Marxist / elitist President in 1934.

@@mattw7949 not prisons, politicians and lawyers are our downfall.

why? the speed of the bolt is what controls either one.

In the mid 1800s they did not have the ability to make parts to the tolerances required by modern firearms,that's why the Gatling had a multi-barrell design,based on a seed drill, and would jam if cranked too fast.

making a single barrel repeating firearm with black powder as a propellant is not feasible, the barrel would foul too fast. one of the reasons gatlings can work is that they split the fouling between several barrels.

a gatlin gun uses multipule barrels so they don't get hot as fast as a single barrel.

It's very easy to design something complex. It's very difficult to design something simple that works well.

G-18.

No

legally? yes if you get a manufacturers liscense you can do anything you want but you can't sell it to anyone excet leos and govt agencys. I am not sure but I think you have to destroy the ones you made for yourself if you quit renewing your liscense.

"In battery" in guns means "breech is locked"

Non ak47, akm is civilian model,, same difference between a M16 and Ar15

For tuitorial purposes

@@topman8565 you forgot the air quotes

@@imtfox8091 suuuuuuuure I forgot

@@topman8565 ;)

ah, that's for the AK portion of the video it's to educate middle-eastern insurgents on how their AKs work 👍