Julien Boit Posted November 21, 2002 Share Posted November 21, 2002 Hey all, I have a question for all the certified riflemen and gunsmiths and all the other, In fact anyone who can help me What's the length of an original AR15 extractor spring ? How many coil does it have ? Is it the kind of thing you replace when tuning your rifle ? DVC Julien Link to comment Share on other sites More sharing options...
EricW Posted November 21, 2002 Share Posted November 21, 2002 Julien, The spring out of my Colt is right at 4mm long and has 3 coils. It also has a blue, plastic/rubber/elastomer piece inside the spring that gives it extra tension. My understanding is that the plastic piece is critical in getting proper extraction. I don't know much about tuning, b/c mine worked out of the box, but having a couple extra spring/inserts around is probably a great idea. I put my spares in a plastic baggie and leave them in my buttstock. I think you can order them from Bushmaster. http://www.bushmaster.com/shopping/uppers/...r_receivers.asp If you look at the page, I think there is actually a mistake. The "Extractor Pin Insert" is actually an "Extractor Spring Insert" I believe. You'll need both that plus the spring. Thanks for reminding me, b/c I needed to order spares of these and forgot. E (Edited by EricW at 8:53 am on Nov. 21, 2002) Link to comment Share on other sites More sharing options...
RL17 Posted November 22, 2002 Share Posted November 22, 2002 Brownells sells a Wolf extra power extractor spring. They come in a package of 3. You don't use the insert in it. They work really well, and improve or even cure extraction problems with short barrels. Link to comment Share on other sites More sharing options...
Julien Boit Posted November 23, 2002 Author Share Posted November 23, 2002 Thanks for the advice Pat DVC Julien Link to comment Share on other sites More sharing options...
grywlfbg Posted May 13, 2013 Share Posted May 13, 2013 Holy zombie thread Batman! Ok, resurrecting this one. I pierced a primer on my CTR-02 and it blew some crap down into my ejector causing FTE's. I figured since I'd have to take the bolt apart I might as well replace the ejector and extractor springs. So what's the consensus on extractor springs? Wolff? Insert, no insert? The JP bolt did have an insert (or what Brownell's calls an AR-15 extractor buffer). Link to comment Share on other sites More sharing options...
rvb Posted May 15, 2013 Share Posted May 15, 2013 (edited) I've been switching over to the newer "gold" Colt spring on my guns when it comes time for PM: http://www.brownells.com/rifle-parts/extractor-parts/extractor-springs/extractor-spring-assembly-prod4840.aspx seems to work well with both carbines and rifles w/o having to remember what color insert goes where, o-rings, etc. Not a great number of rounds with them yet [personally]..... -rvb Edited May 15, 2013 by rvb Link to comment Share on other sites More sharing options...
Klemmer Posted May 15, 2013 Share Posted May 15, 2013 Colt gold spring is the current military standard. You also want a black insert inside the spring. Blue inserts are the old style and weaker than the black ones. My rifles are split between the Colt gold/black combo and the Wolff extra power springs without inserts. Link to comment Share on other sites More sharing options...
grywlfbg Posted May 15, 2013 Share Posted May 15, 2013 Looks like colt gold/black insert is the way to do. Thanks for the info! Link to comment Share on other sites More sharing options...
Mark Gale Posted May 16, 2013 Share Posted May 16, 2013 Looks like colt gold/black insert is the way to do. Thanks for the info! You'll notice that the Colt spring has closed ends and is ground. This isn't the case with the Wolff spring (closed but not ground). The grinding operation ensures that the ends of the spring are square to its axis and subsequently compresses along its axis. The Wolff spring is also "extra power" but this doesn't translate to extra life. Link to comment Share on other sites More sharing options...
Smokecloud Posted May 16, 2013 Share Posted May 16, 2013 any good quality spring will do, but black inserts are for carbine, but will also work in rifle. Blue inserts are for rifle and not strong enough to work reliably in carbine. If you have a good spring and black insert, your fine. No doghnuts, too much tension and it starts wrecking the rims on the cases. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now