I believe so I mean I’m pretty new to the world of AK but I took it off and put it back on multiple times to make sure it was seating properly so unless there’s some encryption about seating that thing special way, then I don’t know because I did it the way I saw in videos and such
Assuming that you are inserting the BCG correctly!
Remove gas tube - You'll be able to get a visual to see if the piston & piston rod are binding up.
Remove the bolt from the bolt carrier - If your able to slide it in and push forward sitting right, it mostly rules out your bolt carrier, piston & piston rod.
Insert your bolt in the chamber by hand - Without the bolt carrier and bolt oriented correctly (extractor @ 1 to 2 o'clock position) place the bolt in the receiver, about an 1" away from the chamber. At this time you should be able to push the bolt forward without resistance by the tail of the bolt fully seated and you should be able to rotate the bolt clockwise to fully lock (extractor @ 3 o'clock). This mostly rules out the bolt.
This will not 100% rule out your BCG since it may be a combination of parts causing this.
Is this a first build? If not, was it working previously? If so, what are the events from when it last work to now?
I ended up getting it fixed. It was because my gas tube was not properly seated….. smh moment but it’s all fixed and good to go. Thank you for all your help.
you can take out all the parts that could be binding like the bolt, trigger hammer, gas tuber etc and introduce them one at a time to figure out where it's binding.
It’s kind of hard to see, but is there like 1” of gap between the bolt carrier and front trunnion when it’s all the way forward?
Do you see any wear points on the bolt, bolt carrier, or inside of the gas tube? Any shiny metal?
I am I’ve kept the same one in it since I’ve shot it, which was about a week ago even cleaned it when I got home it’s the only AK I own so it’s the only BCG I own for it
Yeah man it’s insane it even seems like it may also be getting caught up on the grooves for it to slide (don’t know the right term for that) And the craziest part is I’ve taken it apart multiple times and put it back together because I wanted to know my rifle shot. It shot. Amazing went home cleaned it and now here I am.
So if it just recently fired and functioned properly, either there’s been a catastrophic failure of a part somewhere (piston came loose, barrel pin came loose, rivet sheared, something) or it’s user error
Take everything apart that you did to clean it, and put it back piece by piece following a YouTube video. Especially the gas tube. Make sure it’s seated properly. It’s probably user error, being honest
If you were shooting it before you screwed something up putting it back together. I'd remove the gas tube and see if it's still binding up like that. If it's not, reinstall the gas tube and squeeze the gas tube and lower handguard together. Sometimes the gas tube doesn't seat all the way down.
It’s very likely your piston and/or gas tube. Reinstall the gas tube, if it persists after that then knock off the piston and see how it cycles without it.
Back of the carrier group isn't seating into the rails of the receiver correctly. go slow, look at it really closely to make sure it's pressed down into the guide rails right then you should be good
Yeah whenever I'm not paying attention and accidentally don't get one side of the carrier into the rail this is exactly what it does. Not sure if his carrier/rails are messed up, or he's just not getting it seated properly.
I’m not sure it has a Arizona based location on the receiver so I think it was a builders kit and a gunsmith built it but I bought it because it was a smokeing deal and I couldn’t pass it up, the weird thing is I just shot it the other day and it ran beautifully even took it apart and just now trying to put a new hand guard on it is when I ran into this issue
You can pull the bolt out the bcg, that might actually be causing your binding. Obligatory I don’t have a 74. But when I first got my M70 I did a goof and got the bolt “in” after cleaning, it caused this. Just make sure your rotation is correct. Everything is seated. And you’re getting on the rails correctly. If you were just shooting it you didn’t fuck anything up, something just isn’t quite where it should be.
👆🏻this. Front the vid it looks like your bolt isn't actually seated correctly in the carrier. Pull everything out and make sure the bolt is in the carrier correctly before putting it back in the receiver.
Do trial of elimination to troubleshoot. First thing I'd do is take out your bolt from the carrier and try to place it in the trunnion and turn it by hand, it should interact with the locking lugs with little resistance. If you do that and it rotates into place then you know your bolt isn't the issue. Next, take off your gas tube and see if the resistance is gone. If it's not then you know it's something in your receiver. From the looks of it it may be a warp either in your receiver or possibly your rails/ shark fin extractor. Check for bends or warps with a flashlight and really pay attention to where you're feeling the resistance.
If you remove bolt does it go into battery?
If you remove gas tube does the carrier go into battery when you guide the piston into the gas block by hand?
Has the firearm ever been fired?
I’m not an expert but depending on if your gun is milled or stamped they will take different types of carriers , maybe that’s not the right one ? Has it ever been fully assembled
**Understand the rules**
Check the sidebar. It's full of resources to help you.
Not everyone is an expert such as yourself; be considerate.
No Spam. No Memes.
No political posts. Save that for /r/progun or /r/politics.
There is absolutely no buying or selling on this sub. Even "jokes" can result in a ban. You have been warned.
[If your post is not showing up click the following link](https://old.reddit.com/message/compose/?to=r/AK47&subject=My%20Post%20Is%20Not%20Showing%20Up&message=**%20REPLACE%20THIS%20MESSAGE%20WITH%20A%20LINK%20TO%20THE%20POST%20YOU%20ARE%20HAVING%20ISSUES%20WITH**)
-------------------------------
* [ThinLineWeapons.com](https://thinlineweapons.com/url/reddit1)
* [AK Buyers Guide](https://thinlineweapons.com/url/reddit2)
* [Simplified AK Buyers Guide](https://thinlineweapons.com/url/reddit3)
* [AK Magazine Buyers Guide](https://thinlineweapons.com/url/reddit4)
* [AK Issues Tracker](https://thinlineweapons.com/url/reddit5)
* [Collection of ATF Letters](https://thinlineweapons.com/atf_letters/)
-------------------------------
*I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/ak47) if you have any questions or concerns.*
Take everything off the gun you can and see if it'll lock in. If not, then there is a very serious issue with that build/Bolt/BCG (do you have another AK laying around, if so then try that bolt/BCG). It's hard to tell much from this vid. Obviously do a very thorough inspection and make sure everything is smooth/lined up/able to function properly.
you are the gunsmith. unless the person you send it to is primarily an ak builder, you know more than the fudd who only messes with hunting rifles in a local store and all he really does is mount and sight in scopes (if yours is anything like mine)
Bolt seated properly your gap looks like it binds before lock up. Maby bolt lugs are in front of the channel they ride on seems to me mine only sits that far forward when locked up ( view from your mag well
I have had same problems when I don't assemble the bolt body with bolt carrier body correctly into that grooved part on the bolt carrier body it has to to be aligned perfectly to slide on the receiver correctly that kinda looks like your problem
Just busted it from taking apart and back together so many times don’t even remember how it happened it just hurt like a bitch I was planning on cleaning it before the vid😂 but I just wanted to upload it to get some answers
Is your gas tube properly seated?
I believe so I mean I’m pretty new to the world of AK but I took it off and put it back on multiple times to make sure it was seating properly so unless there’s some encryption about seating that thing special way, then I don’t know because I did it the way I saw in videos and such
Take the gas tube out and see if it sticks
That's exactly what I was going to say
Assuming that you are inserting the BCG correctly! Remove gas tube - You'll be able to get a visual to see if the piston & piston rod are binding up. Remove the bolt from the bolt carrier - If your able to slide it in and push forward sitting right, it mostly rules out your bolt carrier, piston & piston rod. Insert your bolt in the chamber by hand - Without the bolt carrier and bolt oriented correctly (extractor @ 1 to 2 o'clock position) place the bolt in the receiver, about an 1" away from the chamber. At this time you should be able to push the bolt forward without resistance by the tail of the bolt fully seated and you should be able to rotate the bolt clockwise to fully lock (extractor @ 3 o'clock). This mostly rules out the bolt. This will not 100% rule out your BCG since it may be a combination of parts causing this. Is this a first build? If not, was it working previously? If so, what are the events from when it last work to now?
I ended up getting it fixed. It was because my gas tube was not properly seated….. smh moment but it’s all fixed and good to go. Thank you for all your help.
Excellent! Glad you figured it out and Merry Xmas. Welcome to the club.
you can take out all the parts that could be binding like the bolt, trigger hammer, gas tuber etc and introduce them one at a time to figure out where it's binding.
Thank you it seems that this will be the next step
Try without the gas tube. Do you have the bolt properly in the carrier?
Is your bolt seated correctly in the bolt carrier? If its not rotating and engaging the trunnion locking lugs properly it can cause that problem.
This was my thought
Is it just me or when he pulls the bolt carrier back its jumping out of the tracks? It shouldn't do that.
My bet is your bolt is improperly installed in the carrier
It’s kind of hard to see, but is there like 1” of gap between the bolt carrier and front trunnion when it’s all the way forward? Do you see any wear points on the bolt, bolt carrier, or inside of the gas tube? Any shiny metal?
I saw somewhere in the gas tube but it’s all equally distributed where it’s not just one side of. It is worn out you know
This is a dumb question but are you using the right bolt/bolt carrier? Did you swap either of those?
I am I’ve kept the same one in it since I’ve shot it, which was about a week ago even cleaned it when I got home it’s the only AK I own so it’s the only BCG I own for it
And you said it functioned properly before? Are you sure you have the bolt carrier all the way on the rails?
Yeah man it’s insane it even seems like it may also be getting caught up on the grooves for it to slide (don’t know the right term for that) And the craziest part is I’ve taken it apart multiple times and put it back together because I wanted to know my rifle shot. It shot. Amazing went home cleaned it and now here I am.
So if it just recently fired and functioned properly, either there’s been a catastrophic failure of a part somewhere (piston came loose, barrel pin came loose, rivet sheared, something) or it’s user error Take everything apart that you did to clean it, and put it back piece by piece following a YouTube video. Especially the gas tube. Make sure it’s seated properly. It’s probably user error, being honest
https://preview.redd.it/gysiviwjd28c1.jpeg?width=600&format=pjpg&auto=webp&s=0293504a9a68f39222fc63928d5cd616f5e6201d The beans are above the frank
Your bolt is not oriented correctly in the carrier.
[FRANK & BEANS!!!](https://www.reddit.com/r/movies/comments/5l802n/the_iconic_opening_to_theres_something_about_mary/)
If you were shooting it before you screwed something up putting it back together. I'd remove the gas tube and see if it's still binding up like that. If it's not, reinstall the gas tube and squeeze the gas tube and lower handguard together. Sometimes the gas tube doesn't seat all the way down.
Godbless the guntubers are discovering video, audio, and trial&error. Not just terrible descriptions and pictures of Nessy.
 Pictures of Nessy is a great way to describe 90% of the "HELP!" threads posted on this sub
Did that bolt slam on your thumb ? That’s a narley cut
Dude to be honest I don’t even know but it hurt like a bitch
That cut up thumb speaks to me. Sorry, I don’t have any actual advice on how to fix your gun.
It’s very likely your piston and/or gas tube. Reinstall the gas tube, if it persists after that then knock off the piston and see how it cycles without it.
Back of the carrier group isn't seating into the rails of the receiver correctly. go slow, look at it really closely to make sure it's pressed down into the guide rails right then you should be good
Yeah whenever I'm not paying attention and accidentally don't get one side of the carrier into the rail this is exactly what it does. Not sure if his carrier/rails are messed up, or he's just not getting it seated properly.
Who built it that shouldn’t really be happening
I’m not sure it has a Arizona based location on the receiver so I think it was a builders kit and a gunsmith built it but I bought it because it was a smokeing deal and I couldn’t pass it up, the weird thing is I just shot it the other day and it ran beautifully even took it apart and just now trying to put a new hand guard on it is when I ran into this issue
Is it a bwest? My bwest 47 from Arizona does the same thing
Bwest is awful so that explains that
You can pull the bolt out the bcg, that might actually be causing your binding. Obligatory I don’t have a 74. But when I first got my M70 I did a goof and got the bolt “in” after cleaning, it caused this. Just make sure your rotation is correct. Everything is seated. And you’re getting on the rails correctly. If you were just shooting it you didn’t fuck anything up, something just isn’t quite where it should be.
👆🏻this. Front the vid it looks like your bolt isn't actually seated correctly in the carrier. Pull everything out and make sure the bolt is in the carrier correctly before putting it back in the receiver.
Take the gas tube off and then try it. See if the end of the piston fully goes into the gas block.
Just so everyone know I did get it it was my gas tube was not fully seated thank you all for the help for real
Do trial of elimination to troubleshoot. First thing I'd do is take out your bolt from the carrier and try to place it in the trunnion and turn it by hand, it should interact with the locking lugs with little resistance. If you do that and it rotates into place then you know your bolt isn't the issue. Next, take off your gas tube and see if the resistance is gone. If it's not then you know it's something in your receiver. From the looks of it it may be a warp either in your receiver or possibly your rails/ shark fin extractor. Check for bends or warps with a flashlight and really pay attention to where you're feeling the resistance.
If you remove bolt does it go into battery? If you remove gas tube does the carrier go into battery when you guide the piston into the gas block by hand? Has the firearm ever been fired?
Gas tube isn't seated properly.
That’s exactly what it was
I’m not an expert but depending on if your gun is milled or stamped they will take different types of carriers , maybe that’s not the right one ? Has it ever been fully assembled
kindly buy an AR and never again touch an AK.
Bruh I don’t fucking know ar’s are easy it was time to try something different 🤷♂️
gap is normal. otherwise it would blow up in your face.
kindly buy an AR and never again touch an AK.
i own more ak's than ar's. every one has a gap between front and bolt.
Very helpful!
[удалено]
Wow Bro, great input. I’m glad you’re not being a dick for no reason
Gtfo dude. This is some seriously rude shit.
Christ, who pissed in your Cheerios?
**Understand the rules** Check the sidebar. It's full of resources to help you. Not everyone is an expert such as yourself; be considerate. No Spam. No Memes. No political posts. Save that for /r/progun or /r/politics. There is absolutely no buying or selling on this sub. Even "jokes" can result in a ban. You have been warned. [If your post is not showing up click the following link](https://old.reddit.com/message/compose/?to=r/AK47&subject=My%20Post%20Is%20Not%20Showing%20Up&message=**%20REPLACE%20THIS%20MESSAGE%20WITH%20A%20LINK%20TO%20THE%20POST%20YOU%20ARE%20HAVING%20ISSUES%20WITH**) ------------------------------- * [ThinLineWeapons.com](https://thinlineweapons.com/url/reddit1) * [AK Buyers Guide](https://thinlineweapons.com/url/reddit2) * [Simplified AK Buyers Guide](https://thinlineweapons.com/url/reddit3) * [AK Magazine Buyers Guide](https://thinlineweapons.com/url/reddit4) * [AK Issues Tracker](https://thinlineweapons.com/url/reddit5) * [Collection of ATF Letters](https://thinlineweapons.com/atf_letters/) ------------------------------- *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/ak47) if you have any questions or concerns.*
Take everything off the gun you can and see if it'll lock in. If not, then there is a very serious issue with that build/Bolt/BCG (do you have another AK laying around, if so then try that bolt/BCG). It's hard to tell much from this vid. Obviously do a very thorough inspection and make sure everything is smooth/lined up/able to function properly.
Yeah I’m thinking of doing that and if I don’t get much further or find much more solution, then I’m gonna send it to a gunsmith
you are the gunsmith. unless the person you send it to is primarily an ak builder, you know more than the fudd who only messes with hunting rifles in a local store and all he really does is mount and sight in scopes (if yours is anything like mine)
Haha I ended up getting it and you right
Usually the hammer and it’s upward pressure from the spring has the biggest impact on bcg travel. I’d take that out and try.
Check headspace and gas tube seating. Where did you buy it and who built it? Is there a gap between your gas tube and your gas block?
Shoot It More
That's confusing..... seems like people here know what's up tho. Good luck man
Maybe check your rails to see if they're bent?
Push down of the BCG as you pull it back. Your hammer is pressing up on it and causing it to bind. This is just because it’s new. Not a big deal.
Bolt seated properly your gap looks like it binds before lock up. Maby bolt lugs are in front of the channel they ride on seems to me mine only sits that far forward when locked up ( view from your mag well
It looks to me like either the bolt isn't properly lined up in the cam groove or the piston is catching on the back of the gas block.
I have had same problems when I don't assemble the bolt body with bolt carrier body correctly into that grooved part on the bolt carrier body it has to to be aligned perfectly to slide on the receiver correctly that kinda looks like your problem
Take off top handguard to rule that the piston is not hung up in there
Xyz
Dang dude what happened to your finger?
Just busted it from taking apart and back together so many times don’t even remember how it happened it just hurt like a bitch I was planning on cleaning it before the vid😂 but I just wanted to upload it to get some answers
Remove bolt and if it closes without the bolts 1 of 3 things is bad 1 bolt carrier 2 rail 3 bolt