[ARCHIVED THREAD] - AR15 Reduced Power Hammer Spring

Posted: 2/19/2007 9:08:59 AM EDT

I currently run a .223 upper and a 9mm upper on an Oly Registered Receiver. Both of these calibers and uppers run 100%. I have been messing around with a Ciener .22LR conversion in my .223 bushmaster upper and I have found that with Federal Champion .22LR it will run about 95% of the time. I think that the .22LR is having trouble cocking the heavy M16 hammer spring. My question is if I replace the Hammer spring in the M16 to a Reduced Power spring from Brownells will I still get reliable ignition with the .223 and 9mm?

Posted: 2/19/2007 9:16:17 AM EDT

[#1]

I don't know firsthand but this site metions how he tweaked his spring and was still able to be reliable with 223.

home.netcom.com/~uzisubgun/id3.html

Posted: 2/19/2007 10:50:43 AM EDT

[#2]

JP yellow springs i use them on my 223 and 9mm and they work great! Brownells has them. MGP

Posted: 2/19/2007 10:54:16 AM EDT

[#3]

I don't have any problem with Champions in my AR using an M261. No failures at all, though the Remington bulk pack .22s acted like crap in it (and everything else I tried them in).

Posted: 2/20/2007 4:17:32 PM EDT

[#4]

I use the comp trigger & hammer springs from Bushmaster in my 9mm AR and it's fine. But you know, I noticed a bigger difference in my 223 AR...I think the biggest difference was from the 9mm hammer.

Posted: 2/20/2007 7:03:45 PM EDT

[#5]

I have not found it necessary to change hammer springs when using any of my Ciener kits or M261 kits.

When using a Ciener kit, following the polishing instructions posted previously, then purchase some of these magazines from Black Dog Machine

[ARCHIVED THREAD] - AR15 Reduced Power Hammer Spring

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[ARCHIVED THREAD] - AR15 Reduced Power Hammer Spring

[ARCHIVED THREAD] - AR15 Reduced Power Hammer Spring