How to Disassemble/Reassemble an AR-15 BCG Ejector & Extractor

[@davesgunchannel]

Recommended: Quality AR15 Armorer and Cleaning Tools by Real Avid: alnk.to/cb3EAn2 (Real Avid Affiliate Link)

[@theroller5673]

No five minute tacticool intro? No crappy background music? Video length under 35 minutes? What is going on here? Probably one of the best how-to videos I have seen on YT is what's going on. Well done sir!

[@davesgunchannel]

lol! Thanks so much! Your comment made my day!

[@davidmatz5036]

Best how to tutorial bar none. Superb job coordinating video with audio explanations. Also appreciated absence of distractions like music or family pets. For an 80 year old newbie with 10 thumbs, working the BCG can be daunting. Thank you, Sir. You’ve provided a real service! Subscribed and look forward to more content from you.

[@davesgunchannel]

David, thanks so much for watching and leaving. Such a nice comment. I really appreciate it! Dave

[@souljuh4539]

I could not agree with u more sir!!! This was 1 helluva tutorial. Hands down one of, if not THE, best I have come across 👍🏾

[@BlackTongue.]

Serious question: would it be beneficial to use a new roll pin/coil pin when reinstalling the ejector? Won't the old pin be loose? Also, anyone know the size and length of that ejector roll pin?

[@Ash_95]

Great video. Really appreciate how you took close up pictures to show the detail. I look forward to future vids from you.

[@davesgunchannel]

Thanks for the nice comment! I appreciate it! Dave

[@hotstepper1734]

Thanks for being this clear and concise.

[@davesgunchannel]

Thanks for watching and leaving a comment! I really appreciate it!

[@mikedurhan9941]

Thank you so much for a top-notch video. Unlike so many others, your voice is easy to understand (clear) and there's no music blasting at the beginning and end of your video. Very helpful.

[@davesgunchannel]

Glad it was helpful! Thanks so much for the comments!

[@Captainpaulbtyhtr]

Great video , close ups are great .

[@davesgunchannel]

Glad you like them! I appreciate the comments!

[@donaldsmith438]

I have an AR rifle chambered in 7.62x39 that I need to check the Head Space on before I fire it, so I need to remove the ejector from the bolt to properly use some Go, No Go Gauges. I have never done this before and I've repeatedly been told of all the expensive tools I would need, and you just proved them all wrong with a $15 bench block and a couple of punches. I can't wait to get started thinking of all the $$ you saved me. Thanks a million. Liked and subscribed. GREAT VIDEO.

[@davesgunchannel]

Donald, thanks so much for the comment! I really appreciate it! Glad to save you some money! Dave

[@radu7777]

Great video! The simplest method I've seen demonstrated so far. No vise or special-purpose tools required.

[@davesgunchannel]

Glad you enjoyed it! Thanks for the comment. I really appreciate it! Dave

[@aviesto2417]

Thank you for lesson. I used to watch disassembe videos and no one mentioned about ejector pin. And its so small i didn't even see it. Biggest thank you. You helped me so much. I think now its safe to say i know everything about ar-15 bolt system.

[@davesgunchannel]

Glad it helped! Thanks so much for watching and leaving a comment!

[@Ohkayechill]

Dude, I love how detailed and simple he makes this. Let's get all breakdowns. You're a hero 👍🏻

[@davesgunchannel]

I appreciate that! Thanks for watching!

[@thomasjefferson6848]

Excellent video! Clear and concise explanation, great close- up videography. Thank you.

[@davesgunchannel]

I really appreciated that comment!! Thanks for watching!! Dave

[@mikewallace119]

Using a slave pin when reassembly is a useful technique. I use this technique on various jobs, assembling machines at work. Also, I have used it on AR 15 lower builds. Very good instruction video... No BS just good info.

[@davesgunchannel]

Thanks! I really appreciate you watching the video and leaving a comment!

[@Matt-y8x]

Dont need to at this time, But I've wanted to learn this step. Ran accross it accidently and had to watch. Best teaching methods.

[@davesgunchannel]

Thanks so much! I appreciate you watching and commenting!

[@xerravon]

I agree with everyone that said, "best how to on ejector" in fact so far the only video on ejector removal/reassembly! THANK YOU! subbed!

[@davesgunchannel]

Thank You so much for your awesome comment! I really appreciate it! Dave

[@jbp3430]

Nice. I had one of my plungers fly out. Using a KAK dual ejector . Since they won’t fix it because they won’t deal with people from Illinois you saved the day.

[@davesgunchannel]

Thanks so much for letting me know! I appreciate that! Thanks for watching! Dave

[@hepek69]

Great video!! Very helpful and straight to the point. Thanks for the assist!

[@beesknees6970]

wow... thank you so much. I've been intimidated to take the ejector out so I can check headspace on home builds. This helps alot.

[@davesgunchannel]

Glad I could help! I was the same way, but It’s real easy once you do it!

[@richardgluteus]

Best video out there for this process. Checking my headspace and just what I needed, thanks!

[@davesgunchannel]

Drew, I’m so glad it helped you out. Thanks so much for watching and leaving a comment. I really appreciate it.m! Dave

[@craigmedvetz2125]

Great video. I’ve watched a few and this is the best.

[@davesgunchannel]

Wow, thanks! I appreciate that!

[@MorrisOutdoors98]

Something I've never done was fiddle with my bolt itself. I just scrub it and go. I needed to learn how to do this because I wanted to know how to swap the ejectors

[@davesgunchannel]

Thanks for watching and leaving a comment!

[@cirosalek392]

That was awesome! Love the still close up pictures and tricks. Short sweet and to the point. Thanks.

[@davesgunchannel]

Glad you liked it! I appreciate the comment very much! Dave

[@sojc7144]

Excellent step by step..paused video description teaching!!❤

[@davesgunchannel]

Glad you liked it! Thanks so much for the comment! Much appreciated! Dave

[@u4eeahh676]

Holy cow was going buy a Y/M to check my bolt Headspace this is great thank you .

[@nothingelsetolose7661]

The most clear concise. And best. Videography and photograph. Providing. The best example. Of how to do. Thank you.

[@davesgunchannel]

Glad it was helpful! Thank you for the comment! Dave

[@rayb9053]

Very clear and comprehensive explanation! Thanks very much sir!

[@davesgunchannel]

Ray, thanks for the nice comment and thanks for watching the video! Dave

[@rybread5718]

Great video! The manufacturing of these parts is so smart!

[@davesgunchannel]

Thanks for the comment! I appreciate it very much! Dave

[@tedr.richardson4655]

Very well explained, great close up video.

[@davesgunchannel]

Thanks so much for watching and I really appreciate your nice comment!

[@chrisross1657]

PHENOMINAL tutorial ! Thank You !!!

[@davesgunchannel]

Thank you! I appreciate that!

[@GregMartinezRealty]

This was super helpful. Thank you for the excellent tutorial!

[@davesgunchannel]

Glad it was helpful! I really appreciate your response!

[@kchorrosoto4068]

Nice video! thanks for putting it together! THANKS!!!

[@davesgunchannel]

Glad you liked it! Thanks for the comment!

[@bigoz7]

Great video very informative Excellent camera work!!! Thanks for sharing!

[@davesgunchannel]

Thanks for watching! I appreciate the comment! Dave

[@johnpierce1470]

Superb camerawork and very informative. Thank you sir 🫡

[@davesgunchannel]

John, thanks so much for the nice comment! I really appreciate it! Dave

[@deraldo313]

Imagine having to do this in the field!

[@pmurphy12667]

excellent and very well presented

[@davesgunchannel]

Thanks! I appreciate your comment!

[@CubaLou1]

Very GOOD demonstration. Thank you for this video.

[@davesgunchannel]

Louie, thanks for the comment! I hope it helped you out! Dave

[@donape64]

Grazie! Video salvavita per i nostri AR15!

[@davesgunchannel]

Thanks so much for watching and leaving your nice comment!!

[@james-im1sj]

Yes hold on to it waiting on rebuild kit for my bolt spring went flying never did find it.

[@davesgunchannel]

James, sorry to hear that! I was able to find mine, lol! Dave

[@45acpmike]

This was super helpful. I had to hammer that pin back in though. Mine didn’t go in that easy

[@davesgunchannel]

Thanks for the comment! I appreciate that. I guess some pins are tighter than others. I was actually surprised mine went in as easy as it did. Dave

[@thebullandarcher7964]

Outstanding and Precise. Cheers mate!

[@davesgunchannel]

Thank you kindly!

[@toddcofer6491]

Thank you. Excellent demo.

[@davesgunchannel]

Glad you liked it! and thank you for the comment! Dave

[@copycatshinobi6920]

Sir, you are awsome god bless you ❤

[@davesgunchannel]

Thanks!! I appreciate you watching and commenting!

[@PeteyWheatie]

Amazing work !!

[@davesgunchannel]

Thanks a lot! I appreciate you watching the video!! 😃

[@mick5740]

Nice ! Iv got a ejector on a relatively new bcg where it sits low compared to others the ejector is flush or a little higher. This one sits lower. It doesn’t eject now. Just holds the shell

[@davesgunchannel]

Have you removed the ejector to check and see if the spring is in good shape?

[@skytrooper506]

Absolutely great video. Thanks!

[@davesgunchannel]

I really appreciate that! Thanks for watching! Dave

[@evokiller3030]

Awesome job thank you for the upclose pics 💯💯💯

[@davesgunchannel]

Thanks so much for watching and I really appreciate your comment!

[@fordman1776]

Clear and to the point👌

[@davesgunchannel]

Thank you! I very much appreciate you watching and leaving a comment!

[@harveycamacho2247]

Great video very educational. Thank you.

[@davesgunchannel]

Glad it was helpful! I appreciate the comment!

[@Concordeagle]

Awesome video and camera work! Liked and subscribed.

[@davesgunchannel]

Thanks for the sub! I really appreciate it! Dave

[@Richard_Thique]

Very helpful. Thank you.

[@davesgunchannel]

You're welcome, Mr. Y_Normous, 😂 I appreciate the comment! Dave

[@tedr.richardson4655]

Thank you

[@terry5957]

Thank you for the information!!! Saved my day!!

[@davesgunchannel]

So glad!

[@prstoxbeats4734]

Thank you 👌🏾

[@Sandhill1988]

That's a great tip 👏👍.

[@davesgunchannel]

Thanks so much for the comment. I appreciate it!

[@bidenisatraitor7633]

Great explanation and video thank you!

[@davesgunchannel]

Glad you enjoyed it! Thanks for leaving a comment! Dave

[@fishman2951]

Great video!

[@davesgunchannel]

Thanks so much for watching and leaving a nice comment!

[@wtfmrkratos]

Phenomenal! Very clear and concise video. Do you keep spare extractors, ejectors, rings and springs to replace if needed, or just keep spare bolts?

[@davesgunchannel]

Thanks for the nice comment. And thanks for watching the video! I typically just buy parts as needed. I have more than one AR so I am never without one!

[@Toober24]

Awesome. Thank you so much!

[@davesgunchannel]

Glad it was helpful! And thank you so much for the comment! Dave

[@pw15963]

well done

[@davesgunchannel]

Thank you, I appreciate your comment!

[@ferebeefamily]

Thank you for the information.

[@davesgunchannel]

And thank you for watching the video and leaving a comment! Dave

[@Fr3d671]

Simple and clear 👌🏽 Thanks

[@davesgunchannel]

Thanks so much for the comment! Dave

[@slacker7781]

excellent Clear

[@davesgunchannel]

Thanks! I appreciate the comment!

[@DougZ73]

great video and explanations

[@davesgunchannel]

Thank you! I really appreciate the comment!

[@davidlaquay7783]

Thanks

[@davesgunchannel]

I appreciate the comment! Thanks for watching the video! Dave

[@roqueleo1]

Very helpful, thank you

[@davesgunchannel]

Glad it was helpful! Dave

[@texaspatriot9159]

Thank you sir

[@davesgunchannel]

You are welcome and I thank you very much for leaving a comment! Dave

[@texaspatriot9159]

@@davesgunchannel 😁

[@drywallman1986]

Can push the pins out using the firing pin.

[@davesgunchannel]

This is true, although some say that is bad for the pin. As long as the pin you are pushing out is not too tight it should be alright.

[@jonathanrivera870]

I want to change the extraction spring but by the gods the PIN won't come out. I saw you did with almost no effort at 1:10 but mine it's like it's solded. Any tips? Yes I'm using punch pin tools. Great video by the way, very helpful.

[@davesgunchannel]

You might want to kinda let it soak in some WD-40 or something like that for a while to help loosen things up.

[@fujimi715]

Mine was a pain in the ass to change. Maybe depends on tolerances and/or how many rounds have been on it. This vid showed it easy, mine was very difficult lol

[@LetsGoBrandon_]

Where does the little rubber oring go in the bolt? Do some extractors use an oring instead of the spring?

[@davesgunchannel]

The little rubber o-ring Goes over top of the extractor spring. It is usually an optional part that improves extraction performance by increasing the spring tension. Not all bolts have one.

[@fujimi715]

It increases the pressure the extractor puts in the rim. It was part of the M4 upgrades called an extractor booster. You don't need it, but I'd say run it

[@crayolascents]

Loved the video; watched this before doing mine. Question though - if you have that base gadget, then how can you know the joy of having some spring bounce to parts unknown?

[@davesgunchannel]

lol! Believe me, I know that joy!! Thanks so much for the comment!

[@crayolascents]

LOL yeah you did mention that ;)

[@crayolascents]

And I think I need that little holder-block. You're using it so I presume it makes life much easier. Really hard to hold the bolt while you do off - center tapping.

[@LKaramazov]

How often do you need to clean these? How do you know when it needs cleaning?

[@davesgunchannel]

It’s recommended to clean it after each use, that will make it super easy to clean each time.

[@fbswampfox]

Is that roll pin 3/8” or 7/16” long? I see different things online.

[@adrians-_-wrld9674]

Quick question i noticed you did not put a o ring on extractor spring do i not need an oring?

[@davesgunchannel]

The o-ring is not always necessary. If your rifle has trouble extracting, the o- ring can help.

[@adrians-_-wrld9674]

@ I appreciate it you bought a kit to replace everything on the bolt was just making sure!

[@Justin.Brown723]

Do I need to take out the extractor to be able to remove the ejector? And can I reuse the ejector roll pin or is it a single use pin?

[@davesgunchannel]

No, the extractor does not need to be removed to get the ejector out. Also, it is best to replace that roll pin when reassembling of possible, but I have reused mine before and not had any problem. I would say if you shoot a whole lot of rounds then it’s probably a good idea to replace that pin

[@Justin.Brown723]

@ thank you!

[@johnh5259]

At 5:28 when you reinstall the extractor, what keeps the extractor spring in place? Mine separated itself from the extractor and wasn't happy about going back into place.

[@davesgunchannel]

John, thanks for watching the video! The spring is basically held in place by the extractor when assembled, and friction when disassembled. Mine was tight enough that when it was disassembled, it stayed on the extractor. Did you get it back together ok? Dave

[@johnh5259]

@@davesgunchannel Yes! And wow, a personal reply within 24 hours, thank you. Took it to the range today and it works perfectly. It turned out to be just as well that the spring popped out on disassembly - it was dirty in there (that might be why it came loose). Solid A+ for you, Dave, on the video and the quick answer.

[@davesgunchannel]

John, glad to hear it works perfectly! And thanks for the kind words! Dave

[@drgondog]

IF you left the extractor in, how would that screw up a headspace check with go/no go gauges?

[@davesgunchannel]

From what I understand, it can give you false readings. You also should clean the bolt and bolt face before head spacing.

[@lewismeriwether3892]

Should the ejector spring be lubed when replaced?

[@davesgunchannel]

Not really necessary. Thanks for the question! Dave

[@hardtrooth1776]

How do you clean the extractor ? Do you remove its spring ? I'd like to get a spring co spring.

[@davesgunchannel]

I would just wipe it with a dry cloth, or use some solvent if real dirty. Clean the spring same way and use a pipe cleaner to clean the extractor channel in the bolt. Also watch this video: kzbin.info/www/bejne/jILRn2CCibKkeMksi=QFpgGNHV587m6FAt

[@5jjt]

Brilliant...

[@davesgunchannel]

Thanks so much for watching!!

[@markjury6633]

Great video

[@davesgunchannel]

Thank you very much!

[@101bq]

How long have you had the REAL AVID punches and the Tuffman roll pin punches how have they held up to use?

[@davesgunchannel]

My punches are a different brand, so I cannot comment on that. I know my other Real Avid tools are very well made and have stood up to a good amount of use. Thanks for the question!

[@101bq]

Thanks for the info! I only asked about those two brands as they were the ones listed and linked with the video. Do you know what brand they are and are worth the time to lookup or would you recommend a different brand?

[@davesgunchannel]

I would recommend Real Avid all day long. I have a Bench block and had a Master Sight pusher that are both very well made.

[@mick5740]

Im getting failure to eject only some times causing big malfunction trying to feed new round with brass in extractor. This is with BCM extractor Spring and o ring. Wondering if it could be ejector problem although seems fine and is relatively new. Or maybe too much extract spring ? The new spring and or big did fix extractor problem with steel case

[@davesgunchannel]

If you have good tension on the ejector it probably is not that unless there is something in the ejector channel, causing it to bind and maybe occasionally get stuck.

[@CL-lq5ti]

what size is Extractor pin?

[@kyleaudette3776]

Great video. I have purchased a 2nd hand rifle that is not ejecting shells. When i attempt to remove the ejector pin it wont budge. the ejector is also stuck fully depressed flush to the bolt face. Is there a recommendation to help me remove such a stubborn pin?

[@davesgunchannel]

Kyle, sorry to hear the trouble you are having. Maybe try soaking that in WD-40 or a low viscosity penetrating oil for a while to try to loosen things up? Dave

[@CL-lq5ti]

what specific size of extractor pin?

[@gera2396]

Great video, did you change it to show how it's done, or did you have a problem with extracting, failure to feed or double feed?

[@davesgunchannel]

Thanks! I did it to show how it’s done. Never had a problem so far! Thanks for the question! Dave

[@gera2396]

@@davesgunchannel Thanks for the quick reply.

[@BlackTongue.]

Serious question: would it be beneficial to use a new roll pin/coil pin when reinstalling the ejector? Won't the old pin be loose? Also, anyone know the size and length of that ejector roll pin?

[@davesgunchannel]

Yes, it is best to replace it but not always necessary. I will check for the size of the pin.

[@metalwizard23]

So I got my ejector apart the cross pin (you removed it first) is broken and cut into little tiny pieces.. any suggestions on why that might have happened??

[@davesgunchannel]

Wow, I have no idea! I know those pins can wear out though.

[@Logjammer69]

Is it ok to reuse the roll pin?

[@davesgunchannel]

Thank you for the question! It seems that opinions vary on this, I wouldn’t worry about it unless you remove it several times then I would replace it. Dave

[@MAGAWillSaveTheWorld]

Why wasn't there a rubber gasket on the extractor spring??

[@davesgunchannel]

Not all extractors have the O-ring. It is an extra part that increases the tension on the extractor, theoretically improving reliability of the extractor. Thanks for watching the video! Dave

[@PJump]

ty

[@davesgunchannel]

Welcome! Hope it helped! Dave

[@ortodoks3835]

Thank from Ukraine

[@davesgunchannel]

Awesome! Thanks for commenting!

[@MatthewSteeves-g1h]

How Often do you need to Do This ? How Many Rounds ?

[@w.w.9047]

Almost never. You might pull the extractor every 5,000 rds or so and clean, but the ejector will be fine.

[@WetWiIIy]

Do you use a new ejector rollpin after each disassembly or do you reuse the old pin? I hear a new rollpin often recommended by gunsmith types. Also, have you tried applying tension on the ejector during reassembly by leveraging a shell casing into the bolt face via the extractor? Appreciate the vid!

[@davesgunchannel]

Great comment! I use the same roll pin but I would probably replace it if I had some laying around as a Gunsmith would! Your idea for tensioning the ejector is a good one, I will definitely use it next time, thanks!!

[@isaacturner199]

Just to add my two cents as an industrial maintenance guy. You always replace the rollpin if you have some laying around as he said, but at the end of the day unless there's something wrong with it (i.e. it's been really worn down from constant removal or it's deformed), the pin is gonna do it's job. It's just a piece of metal there to stop some thing from falling out.

[@peeeoii2738]

You should replace it

[@999lfe]

My ruger ar15 5.56 nato has a rubber washer around the extractor spring is it supposed to be on it i don't see anyone else's with it.

[@davesgunchannel]

Yes, that is an optional part that helps the extractor work better. I would keep it there but it is not absolutely necessary unless you have issues with the rifle extracting reliably. It adds tension to the extractor to give it a better grip on the brass.

[@Freedom_35]

I have an AR10 and needed to check headspace. unfortunately the pin for the plunger split open when I tried reinstalling it. Do you know the dimensions of that pin, or how I can order it? it really annoys me how rolls pins are used in AR's its like they safe 50 cents and its a terrible product.

[@davesgunchannel]

Simon, try the link below. This roll pin says it is compatible with AR10. www.midwayusa.com/product/1018052226

[@jakerooz9313]

My buddies pin wont come out to release the extractor. Help!!

[@davesgunchannel]

Try soaking it in WD-40 for a while.

[@BJC835]

👍

[@davesgunchannel]

Thanks for the 👍🏼

[@fredmccullough6062]

You people need to turn the volume up

[@davesgunchannel]

Fred, thanks for the comment! I will be sure to check the volume on future videos, thanks for the feedback! Dave

[@deadlysrestorations]

Funny trick my dad taught me that I thought was complete BS but actually works.. Build your rifles in the bathtub while sitting on a chair with the curtain closed and the drain plugged to learn the first time. If you are surprised with a spring or detent... It's contained and hasn't been shot to oblivion Lol 😅

[@davesgunchannel]

Doubt I will try that but the theory is sound!! I appreciate the input!

[@deadlysrestorations]

@@davesgunchannel truth be told the first lower I ever did I sent the forward retaining pin detent and spring into another universe lol then he told me to do that.

[@davesgunchannel]

@@deadlysrestorations LOL. I have spent many hours searching various rooms in my house as well. So far, I have managed to find everything I launched!