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Posted: 12/5/2020 12:31:56 AM EDT
[#1]
Thanks. Site is incredibly slow and impossible to checkout
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Posted: 12/5/2020 10:38:14 PM EDT
[#2]
Shopping cart is down until further notice
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Posted: 12/8/2020 11:09:58 PM EDT
[#3]
It’s back up
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Posted: 12/8/2020 11:15:57 PM EDT
[#4]
https://rimcountrymfg.com/product/rcm-hk-style-mp5k-9mm-locking-piece-2880-deg/
RCM has excellent quality for a much lower price. |
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Posted: 12/9/2020 5:12:40 PM EDT
[#5]
I just put in a RCM #28 90 degree locking piece in my zenith z5p 'k' gun. Luckily the bolt Gap measurement with feeler gauges what is within range to run without modification. Tested it at the range and it runs 100% both with the suppressor and without using the RCM piece. I instantly noted less blowback and no gas to the face anymore!
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Posted: 12/9/2020 5:29:54 PM EDT
[#6]
Quote HistoryQuoted: I just put in a RCM #28 90 degree locking piece in my zenith z5p 'k' gun. Luckily the bolt Gap measurement with feeler gauges what is within range to run without modification. Tested it at the range and it runs 100% both with the suppressor and without using the RCM piece. I instantly noted less blowback and no gas to the face anymore! What ammo did you use? |
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Posted: 12/12/2020 5:54:25 AM EDT
[#7]
Quote HistoryQuoted: What ammo did you use? used 115 green S&B, 124 grain Winchester Black Box suppressor quiet and Fed American Eagle 147. |
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Posted: 12/27/2020 7:25:34 PM EDT
[#8]
Guess my PTR is a little bit older, didn’t fit the HK locking piece. Slightly too small of a whole in the bolt head.
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Posted: 12/27/2020 7:44:05 PM EDT
[#9]
I picked 2 of these for my new PTR mp5k clones. They both fit right in without any fussing. And i'm shooting 147gr blazer brass rounds with and without a suppressor. Both guns cycle fine. Guess I'm leaving these locking pieces in 24/7.
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Posted: 12/29/2020 6:59:45 PM EDT
[#10]
@giantpune where did you get them? Factory HK?
8654 |
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Posted: 12/29/2020 7:04:51 PM EDT
[#11]
Quote HistoryQuoted: Guess my PTR is a little bit older, didn't fit the HK locking piece. Slightly too small of a whole in the bolt head. |
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Posted: 12/29/2020 9:40:26 PM EDT
[#12]
Quote HistoryQuoted: @giantpune where did you get them? Factory HK? 8654 Not HK ones. I got the RCM ones. https://rimcountrymfg.com/product/rcm-hk-style-mp5k-9mm-locking-piece-2880-deg/ |
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Posted: 12/30/2020 12:33:42 PM EDT
[#13]
Quote HistoryQuoted: My 9kt came from the factory with that issue. They took it in and gave me a new hk compatible bolt head. Same with mine, about a year ago. Zero issues suppressed or non-suppressed now with a few K rounds fired. Typically shoot 124+P NATO ball and 147 GDHP subs. Some people have reported stoning the locking piece to get it to fit into the PTR bolt head. |
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