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AR15.COM
1/25/2013 6:36:04 PM EDT
I just got a new gen4 19 today and I have owned several gen 4 and gen3 is this red stuff normal around the firing pin. first time I have ever seen it. and its not copper lube its more of a red color as u can see in the pic.

1/25/2013 6:44:56 PM EDT
[#1]
looks like primer sealer. check your fired case in the box to see if the test case has it too. should wipe right off though.
1/25/2013 6:57:06 PM EDT
[#2]
Quoted:
looks like primer sealer. check your fired case in the box to see if the test case has it too. should wipe right off though.


thanks I just checked the spent casings that came with it and theres a little bit of red on the left and right side. like a small line. but it did rub right off.
1/25/2013 7:48:59 PM EDT
[#3]
Primer sealant. Oil+patch = gag.
1/25/2013 8:26:05 PM EDT
[#4]


as everyone else mentioned perfectly normal...

Gun Scrubber will rinse it right off...and if there any stubborn spots hit it with a tootbrush