AR 10/308 bolt carrier group disassembly and reassembly

Рет қаралды 16,179

2 жыл бұрын

Complete disassembly and reassembly of a new BCG. It is a good thing to do before you install it into your upper.
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Пікірлер: 43

@user-ny9yf7hk7l Ай бұрын

Thanks for this great video. Greetings from The Netherlands (europe :-) )

@5alarmgunworks351 28 күн бұрын

Thanks for watching!

@5alarmgunworks351 2 ай бұрын

The first thing I would do is shine a light in the chamber and see if you can see any deformity or pitting, etc. Then, polish your chamber. After that, see if a round will slide in without the bolt in.

@ellissmithjr6599 Жыл бұрын

Great step by step video 👍. Clear and slow directions👍. I do have to make one point... the notched rings at the rear,it is a myth that the notches need to be off-set,not necessary but I as everyone likes it to be so 👍😎🇺🇸🇺🇸🇺🇸.

@5alarmgunworks351 Жыл бұрын

Thank you, I appreciate your comment. That’s true about the gas rings, however, I like them to be, kinda like piston rings. I guess it’s a leftover mental thing. Lol

@dzydvl76 Жыл бұрын

I look forward to more video's. I'm in the process of milling out an AR-15 and AR-10 lower.

@5alarmgunworks351 Жыл бұрын

Thanks a ton Bill! Milling out? Like an 80%? Let me know how that goes, I’ve never done one.

@fireyourrocketts 6 ай бұрын

Great video, I ended up buying the AR10 Vise from Creedmoor, in /amazon at the time of this writing is about $50.00 and Creedmoor sells it for $40.00. I wanted to check head space for my newly build aR10 in .308 then later for another upper in 6.5, the pins in my Fail Zero BCG seems to be pretty solid in there so did not wanted to take chances and got the vise, if you can spare $50.00 it is worth it.

@pablocarrillojr8880 Жыл бұрын

Nice step by step instructions, thank you sir

@5alarmgunworks351 Жыл бұрын

Appreciate it, Pablo

@dcbush56 4 ай бұрын

Well done. Great video

@5alarmgunworks351 4 ай бұрын

Thank you

@imnnme Жыл бұрын

Great video! Somebody should 3D print a jig to compress ejector for a 308 bolt 🕵🏻‍♂️

@5alarmgunworks351 Жыл бұрын

Lol. No kidding. Thanks for the comment.

@ronpierce9029 4 ай бұрын

Thank you.

@nativepride187 5 ай бұрын

Good video sir

@5alarmgunworks351 5 ай бұрын

Thank you. It was my first attempt at the KZfaq’s. lol. I was nervous and missed a few small things.

@StrGrpp4 Жыл бұрын

firing pin spring located? or not part of it? thought it was in channel of rear of bolt inside where the firing pin inserts. i believe it is there but not very big, but used to prevent it from slam firing

@user-lw6tw6nx7h 11 ай бұрын

Nicw job!.

@5alarmgunworks351 11 ай бұрын

Thank you

@thomasschlemmer607 6 ай бұрын

Question for you, I disassembled my Areo Precision AR-10 bolt carrier and on the extractor it has a small spring and an even smaller spring inside it and 2 o-rings on it is that something new?? Thanks

@Texas_Red_01 Жыл бұрын

Pretty good video. I could wish that you had mentioned what kind of brass you use in the vise to compress the ejector spring. And what kind of grease you use on the ejector spring.

@5alarmgunworks351 Жыл бұрын

Thanks for the suggestion, I can use all I can get. All I did was to cut down an old 308 brass to about 3/4”. I’m working on building a jig to do this. The grease I use is just a gun grease. I have a few I use. Birchwood Casey renewable firearm grease, Hoopes black, and lubriplate SFL gun grease. I have also used Slip 2000. All have worked well.

@johnsfavoritechannels2959 6 ай бұрын

I think there is a spring between my pin and the assembly. So, I inserted spring, then firing pin, then compress slightly and insert cotter pin (actually locking pin). Does that sound right?

@KevinMay71 Жыл бұрын

I think I put mine together wrong one time, it made the sealing rings really drag. Kept the gun from going into battery about half the time. What could cause that?

@5alarmgunworks351 Жыл бұрын

I haven’t seen the rings keeping the bolt from going into battery before, but I’m sure it’s possible. If the rings are wrong sized, or one got folded or damaged in the carrier could cause this. First, pull the bolt out of the carrier. Check the rings. Also, look in the bolt closely where the bolt slides. Look for unusual wear or scratching. Try new rings for the bolt. Make sure they are for the “308” size. The bolt should be tight in the carrier, but you should be able to move it by hand fairly easily. You can check if it is tight enough by assembling it, pull it out fully and set it on a table bolt side down. It shouldn’t move. I hope this helps, if there are any other questions, just let me know. Thanks for watching.

@ramonacosta7289 2 ай бұрын

I’ve been having failure to extract. Ar-10. I just took apart the bolt and found the extractor o-ring is not there. Is this maybe the reason?

@5alarmgunworks351 28 күн бұрын

Could be, however I have seen a few work very well without. It is a cheap fix/trial to see how it goes. After that, first thing to check is the chamber. Polish it and see how it extracts. After that there are a lot of things to check, too many to go into here, and it would be a mile long text. lol. Try those things, if it doesn’t go well, shoot me a message: 5alarmgunworks.com

@amakusa2008 Жыл бұрын

May I know what do you called that red and white thingy on the table?

@5alarmgunworks351 Жыл бұрын

It is a Real Avid bench block

@dmace3597 10 ай бұрын

Would a bad o ring cause double feeding on a new carrier group on a .308

@5alarmgunworks351 10 ай бұрын

Possibly. There are a lot of things that can cause that. I would need further information about it. Is the shell extracting? Is it staying in the chamber while another loads in? What do the extracted cases look like. Does the BCG lock back when you shoot 1 round? Let me know what set-up you have. Thanks

@dmace3597 10 ай бұрын

@@5alarmgunworks351 one round will fire and won’t extract and second round jams behind fired round.

@5alarmgunworks351 10 ай бұрын

Copy. What does the case look like? Is there a Nick taken out if it, or any sign that the extractor is pulling on it?

@dmace3597 10 ай бұрын

Changed the o ring which had a micro tissue and wasn’t lubed works great no more jamming or double feeds thanks to all the input.

@5alarmgunworks351 10 ай бұрын

Fantastic! I’m glad it worked out for you.

@nicholaspetre1 Жыл бұрын

but what about the tiny extractor spring? You did not show how you put the extractor spring back!

@5alarmgunworks351 Жыл бұрын

Oh thanks Nicholas, I didn’t. I appreciate your feedback. I rarely take it off the extractor, I just lightly brush it off, then put light grease on it. I will do a follow up video showing the removal and reinstall of the spring.

@nicholaspetre1 Жыл бұрын

@@5alarmgunworks351 Thank you! My bad. Was inattentive initially. I was actually watching the video for the second time when noticed you said to be careful with an extractor bushing and a spring that was actually inside it. This is when I realized where it was supposed to be. Thanks again

@5alarmgunworks351 Жыл бұрын

@@nicholaspetre1 No worries, it helps me with my future videos.

@barneythedog977 2 ай бұрын

EXCELLENT VIDEO THANK YOU!! Do you have any advice for my AR10 locking shut after loading a round. I have to use a rubber mallet to get the live round out. It failed to fully load the first round so I will not shoot it until it works right, several rounds have since stuck. It is brand new, I failed to clean it (getting lazy with age). I will clean tonight and see why its jamming locked shut. Thanks for any help or advice

@5alarmgunworks351 2 ай бұрын

Thank you. Does your bolt lock into battery when closed? Are you able to shoot the first round when closing and then the fired case gets stuck?

@barneythedog977 2 ай бұрын

@@5alarmgunworks351 PS as a machinist I was looking for wear etc. I noticed two very distinct ring patterns just below the bullet, so I am thinkin head space is causing those. They are only on rounds loaded and unloaded