Do You Need The Extractor O ring???
Do You Need The Extractor O ring???
Extractor o-ring may be needed for some applications but not all. What to look for and be mindful of. thank you for watching and have a good day.
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I was using a mil-spec bolt – no extraction or reliability issues whatsoever. I upgraded to a Wolff extra power spring without the insert or o-ring. Again, no extractor issues. I did feel wary about not using the plastic insert so I ended uo buying the BCM extractor uograde kit. I see that the o-ring should keep the extractor spring centered in the dado in the bolt. We will see how it runs.
Thanks so much for video! All my ARz function great now. Saved me from a nervous breakdown.
Great video! I was questioning the springs in my extractor and wondering about the flaking as well. Thanks much for posting!
I had to replace my extractor because it broke and I figured what the hell might as well put one in the price difference was only about three four dollars between just extractor and extractor with the O-rings and Springs
Watching the video while typing this out. Ordered 2 uppers from bear creek arsenal, both are 7.62×39, one is a 10.5" and the other a 16". These uppers had an oring installed under the extractor and damn these uppers would not chamber a round without major ‘motivation’. I sent them back to BSA and their techs pulled o rings out of both. I played with these B.C.s before sending them back knowing that was the issue, I was just curious what their ‘fix would be.
After calling friends with their ARs, they never seen such a rubber ring. My dad being an armorist for the Corps back in the 70’s said the ring is there for a reason and also added theyd use pen springs in a jam.. What say you internet?
The viton o-rings are only used in conjunction with the shorter 4 coil softer spring and the insert. When you go to the 5 coil spring spring (like BCM made by Sprinco) you use the insert OR the o-ring, but not both. A safer way to extract if you’re having problems is to delay unlocking via buffer spring change (like Tubb Flat Wire or Sprinco Blue) and/or heavier buffer (like H or H2).
Good video. Solved my problem with ejections.
I have a question: You mentioned how an o-ring would be more suitable for an AR pistol. I have a PSA AR pistol with a 7" inch barrel so the thing is probably crazy over-gassed (judging from the sharp recoil it certainly feels like it). I’m a bit concerned with faster wear and tear on the extractor compared to a 16" barreled carbine. Would an o-ring help reduce wear on the extractor or would it just make for more reliable extraction?
Is the black plug inside the spring necessary?
Subscribed been having failure to feed issues on my recent build and aero precision recommended removing 1 or both of the orings the breakdown really helped refresh the memory
O-ring not required the stiffer spring in the BCM extractor kit is all you need !! Forget the oring
Got a new upper in 6.5 Grendel. Having issues loading new round and also ejecting to the 1:00. Bolt face is practically solid brass from account of all the brass shavings. Realized new rounds when in the chamber had issue with extractor clamping around ring. Removed o ring and bolt goes to battery much easier now
if you get good springs . colt or springco you don’t need them . the insert helps . but people keep turning the m16/ar15 platform into something it wasn’t designed to do . but what do i know . only been a armorer on it for over 38 yrs . can it be made better ? yes it can , but most of the tacticool stuff makes more trouble than its worth . i see more pistol length gas systems that screw up and are hard to get working right than other systems . carbine systems can be a pain if the gas is not set up right . sadly most ar barrels are way over gassed from the factory so they will work . i had a sbr a few yrs ago that worked perfect and was not over gassed . had a 12 in barrel from model 1 sales . wish i would have kept it . but the m16/ar15 platform is great for customizing . just dont ask it to do what it was never meant to .
I concur. The oring with larger spring screwed up my cycling and major issues. Put the old spring and oring, no issues. May try spring only.
Not a fan of the o rings but if you have weaker springs or have an insert thats gotten hard I can see using one in an emergency.
No donuts. Normally use a 4 coil extractor spring with the black insert…. if you need more tension, swap to a 5 coil spring.
I bought a BCG and it came with two o rings around the extractor spring. Every shell jammed in the chamber after the it fired.
All mine have the o ring with no problems whatsoever. If you are worried about brass flakes getting under extractor then easily take it off and clean with routine maintenance
The way I look at it is if gun manufacturer didn’t put one in then it doesn’t need to be there.
subscribed. excellent vid bro. i am a ar noob, i picked up a bcm mid-length ar a coupe months back, do you think i need the o-ring in mine or not? i purchased a few jp rifles upgrades such as their enhanced extractor and the new jp rifles enhanced extractor does not have the black donut o ring, it only has the spring and cylinder shaped piece of black rubber.
Thanks for your video. I, now, do not feel the want to upgrade.
GREAT VIDEO!!!!!! You sir, are a very intelligent real armorer!!!
Every bolt of mine gets a BCM Chrome Silicon spring and black buffer. NO O-RING!!!! O-Ring is a band aid for weak piano wire springs and dirty AR15 chambers. O-ring adds a crap ton of extra not needed pressure. Orings can actually be bad. Especially if you run steel cased.
My other preventative measures are using an adjustable gas block. Best option is Superlative Arms PISTON KIT. Unbelievably clean upper and chamber, even after 1000 rounds!
If I have a DI system, I try to at least keep my CHAMBERS clean.
I have a fairly new carbine length complete rifle bought new…it has several times had a stove pipe issue where it will either stovepipe a spent casing or even stovepipe a live round to where it dents the live round and I have to strip it out and keep running…it doesn’t happen all the time..just sporadically with different brand mags and brass ammo..so I can’t pin it down to a particular brand of brass or magazine..I don’t want to say the brand of rifle because it may sway some ppls opinion on what to do,but does this sound like I need an upgraded spring in my extractor??…or would you just send it in for repair?..I am just at the 500 round mark on this gun and even though the issue is rare ,it does happen on occasion and I never know when/if it may happen again so I can’t really bet my life on the rifle as a home defense kind of gun…any thoughts would be appreciated.
They are for SBRs and you have a 20 inch long barrel. Not needed. Old news.
sprinco 5 coil extractor spring without the o-ring is the best setup by far, those springs last far longer than any other spring and far, far longer than the o-ring. and for overgassed systems like short ar’s that extract under higher than normal pressure it’s a great reliability upgrade too
I have found you don’t need the O ring if your using a 5 coil extractor spring.
I went ahead and installed a o ring on my Colt M4 and now I am going to check my cases and bolt for flakes. The gun is still new so I probably would not have had any issues. I don’t think I am going to be shooting any steel case but you never know. Good informative video, thanks.
Chews up my brass!!
Excellent content and a poor focusing camera.
The O ring was designed with the 14.5 and 10.3 barrels with carbine length gas systems in mind. Chris Bartocci of Small Arms Solutions mentioned this several times on his videos, but I think his channel got axed. Either way, O rings are unnecessary on a nice 20" rifle length system such as yours.
Riddle me this: i have a custom carbine build i did myself in 7.62×39. I put 2000ish rounds through it no issue. I then upgraded the cheap psa carrier i had to a failzero NibX and headspaced it myself. It dropped in fine, cycled rounds manually and extracted fine. When i went to fire the gun, i got 2 or 3 shots off before the bolt seized shut and it took a bodybuilder friend to mortar it out (I’m no wimp and 3 other people couldn’t free it). Took it home and it wouldn’t go into battery fully. Took it out to the range next time with the old carrier and perfect performance. Took me a few hours of study and found out the extractor o-ring put so much tension on the extractor, it was getting bound in the locking lugs with a live round further protruding it out. I removed it and it works fine. What could that be?
Installed one on my PSA made Extractor and on my dads DMPS A2 heavy barrel carbine. No issues and better for insurance sake.
Cause me a lot of issues with my BCG. That damn O ring.
My BCM bolt came with the crane o ring. Directions in the bag says to install the o ring with barrels shorter then 14.5 and all 300 blk. Lower pressure systems don’t need the o ring.
I’m building a 10.3 ar pistol build with carbine length gas system what do I do use the o ring or buy a stiffer spring (if so which one)or that bcm extractor Kit?
Being new to guns. I recently built my own AR10 and was having issues with the casing not ejecting properly. Not a fun day at the range. I too noticed brass shavings. I have an Aero Precision BCG and found two o-rings installed in it. A bit of over kill for my rifle.
Thank for the video sir👍🏽 I didn’t recall ever seeing one of those on weapons i had used in the Army.
Mine one doesn’t have it right when I bought it.
Polish or hone the chamber will help the extraction of the brass. God bless and good video!!