I was changing the grip on my sw m&p and the safety spring came out.  I put it in and started to tighten the new grip and i crushed the spring.  Is there a place where i can get a new spring on the internet?  I checked all the local places.  Also what is the proper way of installing so I dont crush it again?  Thanks

Brownells.

I stoped looking at the spring kit, you can probly fnd thespring alone.

http://www.brownells.com/.aspx/pid=27449/Product/AR_15_M16_LOWER_RECEIVER_SPRING_KIT

The grip should have a hole in it for the spring.  Try putting the detent in the lower and the spring in the grip.  Then you can guide it into the hole in the lower as you push the grip back on.

Just pay attention and do it carefully.

After a similar problem the first time I tried working on my rifle, I picked up a bunch of the small spare parts to keep on hand.  Even the most careful person is going to have a spring and detent shoot out at some point, never to be found again.  If you're ordering one spring online, you might as well go ahead and get a couple of each now so that when this problem happens again (and it will), you don't have to wait for the big brown truck to deliver a tiny silver spring.  

Dan

#26

http://dynamicarmament.com/ar15schem.asp

Or, you could get one for $1.11 at Brownells.