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MrPlink
11-02-2010, 7:53 PM
trying to assemble a lower, and there are 2 springs roughly the same size and I want to make sure I dont mix em up.

Im fairly certain one is the disconnecter spring and the other is the bolt catch.
One is coated green, the other isnt.

Which is which?

as always, thanks in advance! :D

Noobert
11-02-2010, 7:55 PM
The one with the flared end is the disconnector spring
http://www.m-aparts.com/products/72905115356_072905a%20015.jpg

MaHoTex
11-02-2010, 7:59 PM
It is important to note the taper on one of the springs. It might be this one!!! Fat end goes down first! I figured that out the hard way. Lot of cussing and head scratching until I removed the spring and noticed it was fat on one side and skinny on the other.

kahai808
11-02-2010, 9:53 PM
brownells has a hole AR build on there site, check it out, thats how i learned! good luck

jchen76@gmail.com
11-02-2010, 10:15 PM
Nice big diagram here.

http://www.ar15.com/content/guides/assembly/lower/

http://www.ar15.com/content/guides/assembly/lower/lowerKit.gif

ohlone
11-02-2010, 11:54 PM
i think the one with green coating is the disconnector spring, at least all of my LKPs' disconnector springs have some kind of color coating

MrPlink
11-03-2010, 2:29 AM
yeah, the flared one was the green one, so it looks like I guessed right, just wanted to make sure.
Thanks again!

donking
11-03-2010, 8:33 PM
On my LPK, the roll pins were hard to install. I since read that this is typical of DPMS. it was said that you can use plyers to slightly crimp the end or a file to slightly taper to help get them started.

Yes, the flared spring is for the disconnector.

ParallaxTactical.com
11-07-2010, 1:45 AM
Throw away the bolt catch roll pin and trigger guard roll pin and hop to your local AR shop and get the correct size ones. The $2 you spend will be worth not denting up your lower!

:D

Also the green one is usually the disconnector spring.

themailman
11-07-2010, 8:13 AM
Throw away the bolt catch roll pin and trigger guard roll pin and hop to your local AR shop and get the correct size ones. The $2 you spend will be worth not denting up your lower!

:D

Amen to this.