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AR15.COM
11/11/2009 5:48:54 AM EDT
I have an M4 and am looking for a heavy hammer spring so I can use my 5.45 x 39 upper with it cheap ammo is why.  Yes, I know it is corrosive, but I enjoy shootin it full and burst so much that I can olny afford the cheap ammo.  The only problem is the burst hammer springs in the appropriate strength are no were to be found.  I have a bunch of the hammer springs for the AR, but they will not work because the buirst spring is larger on one side to go around the ratchet for the burst count.  Anyone out there know where to get a heavy weight burst hammer spring?
11/11/2009 5:50:31 AM EDT
[#1]
I get mine from Bushmaster.  I have to be honest, I've nothing but problems with the Bushmaster burst guns, most notably with the burst cam itself developing burrs.  Such is life.



Welcome to the site.
11/11/2009 6:01:02 AM EDT
[#2]
Consider something like the SSF trigger.  Not only would you be getting a match trigger, it will work well with your 5.45 upper.
11/11/2009 6:02:08 AM EDT
[#3]
TROLL!!!!!
Kidding

Welcome to the site!
11/11/2009 7:36:52 AM EDT
[#4]
I am not sure the SSF will l eave me with a burst capability.
11/11/2009 7:44:04 AM EDT
[#5]
Smith & Wesson provides them with their 5.45x39 AR uppers.  You can probably obtain one from them.
11/11/2009 9:24:03 AM EDT
[#6]
Yes, I called them, not for the burst hammer spring.
11/11/2009 11:56:29 AM EDT
[#7]
Here is a Wolff extra power hammer spring.



http://www.brownells.com/.aspx/pid=19916/Product/AR_15_M16_EXTRA_POWER_HAMMER_SPRING
11/11/2009 12:09:45 PM EDT
[#8]
You have a gazillion dollar rifle and worry about cost?
P

11/11/2009 12:16:19 PM EDT
[#9]




11/12/2009 6:40:49 AM EDT
[#10]
Yes, that is the exact Wolff springs that I have, and they do not work in burst guns, they have a different size winding on one side that goes around the burst counter.

I bought it as an investment, I still am cheap.  What can I say!