Anybody know where I can buy a heavier spring than the one that came with the gun?
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Thread: PEA Rock 5.7
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04-04-2024, 06:51 AM #1MGO Member
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PEA Rock 5.7
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04-04-2024, 10:45 PM #2I am a Forum User
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Recoil spring?
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04-05-2024, 06:36 AM #3MGO Member
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Call PSA. They might have either an assembly or a spring (not necessarily for the Rock 5.7) that is the same profile but more stout.
If you figure out what the PSA spring weight is, let us know. I don't think it is published anywhere. An educated wild guess would be around 18#.
I haven't had a FsN for a while but, when I did - EA was making a ~20# (I think) HD replacement recoil spring for the stock FN 18#. Last I heard they had also started to do drop-in parts kits for the PSA 5.7 (probably through their custom shop).
Out of curiosity, why are you looking to change to a stiffer spring?
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04-05-2024, 12:07 PM #4I am a Forum User
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We (psa) do not offer different recoil springs for the Rock. There is no reason to go heavier, you will just end up with short stroking of the slide. If you're trying to tune for use with a can, Buffman (above) can help point you in the right direction. The weight of the can is a factor, along with ammo selection.
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04-05-2024, 01:45 PM #5MGO Member
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With a 9mm suppressor on it, and i did check with the suppressor manufacturer who indicated it was rated for 5.7, about every sis rounds it wopuldn't go into battery. Think the suppressor is too m8ch weight for the standard spring.
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04-05-2024, 01:45 PM #6MGO Member
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Buffman Yes Sir
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04-05-2024, 11:23 PM #7I am a Forum User
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How much does the 9mm can weigh? Are you running an optic? If so, what optic ? Subsonic ammo, or supersonic ammo?
Originally Posted by michiganfan
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04-06-2024, 07:15 AM #8MGO Member
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I will let you know tomorrow Thanks for your help Buffman
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04-07-2024, 08:28 AM #9MGO Member
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Buffman. Thank you in advance for your help and opinion. The sight is a Holosun EPS. Weighs 1.4 oz. The can is a CGS Mod Mod 9 SK weighs 7.5 oz. The ammo was Fiocchi 40 grain range ammo. Again thanks for your thoughts. Walt
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04-07-2024, 11:20 PM #10I am a Forum User
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Direct thread or boosteR?
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