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12/28/2012 3:23:27 PM EDT
I'm new to this particular forum, and I looked around a little. I didn't see any suppressor specific talk going on, so I'm asking.

After installing my New HTG can on my RRA AR15, I believe I'm getting a little back-gassing. The occasional light primer strike/no fire, and some noticeably dirty (when unfired) unused rounds in the mag. As some of you may be aware, it's kinda hard to get through to RRA, even to ask a simple question.
Now, I'm thinking/hoping that an adjustable gas block will be the cure. Anyone with similar experiences out there?

Muchos Gracias Amigos
12/28/2012 3:14:06 PM EDT
[#1]
You might find some good info/help/config setup about cans in our can forum.
http://www.ar15.com/forums/f_6/20_Suppressors.html


 
12/28/2012 3:55:45 PM EDT
[#2]
Over gassing and crud in the mag is common.
1/2/2013 1:08:38 PM EDT
[#3]
Sounds like two separate issues to me. Overgassing due to the suppressor and light primer strikes due to something with the rifle itself.

How many rounds are you putting through this setup and how often do you break it down and clean it?  Is there too much crud in your bolt?

Did you assemble the lower yourself?  Is the hammer spring backwards?
1/2/2013 5:53:12 PM EDT
[#4]
I have a new Patent Pending, modular, and tool less adjustable gas block.

Have an ad listed here:
http://www.ar15.com/forums/t_7_118/1056814_WTS__New_Patent_Pending_Modular_Adjustable_Gas_Block__Tool_Less_.html

Adding a suppressor will definitely over-gas your gun.  

I have plenty more information on my website below.
Let me know if you have any questions.

http://micromoa.com/
1/3/2013 12:27:01 PM EDT
[#5]
Started with a clean factory lower, and clean can. Ran a couple 30 rd. mags through, and several "no-fires" per mag. The ONLY other "mod" to the rifle is a JP Silent Captured Spring.
1/3/2013 4:59:57 PM EDT
[#6]
Quoted:
Is the hammer spring backwards?


Did you check this?  It sounds like a problem with the FCG to me.
1/3/2013 6:57:14 PM EDT
[#7]
Ditch the springs to elimnate them as being a problem.  As far as gassing check out the pri handle and also you can get a vented forward assist handle to help alleviate that problem.  Search the forum a bit there are a couple threads for a do it yourself gas buster.
1/3/2013 7:21:36 PM EDT
[#8]
Sounds like bolt bounce. Bolt is so over gassed when the bolt goes to close it rebounds and isn't fully locked. That causes the light strike as the hammer hits the carrier home and then does not have the momentum to get a proper strike on the primer.
1/4/2013 5:33:26 PM EDT
[#9]
No mods to lower at all. No probs before suppressor.
1/4/2013 5:35:01 PM EDT
[#10]
"Bolt Bounce" this sounds likely, but what is the best fix?
1/4/2013 5:43:11 PM EDT
[#11]


Info such as barrel length, gas system and other details would be helpful.  Be sure to use an actual buffering buffer, meaning don't use buffers with powdered tungsten internals like the ST-T2.  The reciprocating weights in the buffer have a purpose.  I would suggest trying an H1 or H2 buffer if you are currently using a carbine buffer to help slow down the carrier a bit.
1/5/2013 6:16:24 AM EDT
[#12]
Over gassing causing bolt bounce. Had the same issue with my DPMS SASS 308 once a suppressor was added.  Adjustable gas block fixed the issue.
1/11/2013 4:49:17 AM EDT
[#13]
Quoted:
Over gassing causing bolt bounce. Had the same issue with my DPMS SASS 308 once a suppressor was added.  Adjustable gas block fixed the issue.

Which block did you install?
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