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.
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.
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.
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.
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
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.
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.
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.
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!
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.
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
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
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: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-VQnn-LTMqBg.htmlsi=QFpgGNHV587m6FAt
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
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!
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!!
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.
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.
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
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 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.
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?
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.
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!
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?
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.
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
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
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?
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
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.
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
@@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.
