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Posted: 3/26/2018 5:53:28 PM EDT
[#1]
Quoted:
Anyone else having issues with the finish on their PS90. I can take my finger nail and scratch it it off.... |
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Posted: 3/26/2018 7:07:52 PM EDT
[#2]
The two flat spots inside the 'magazine well' of my PS90 flaked off the first week I had it. I don't think they bother to prime/prep the aluminum. If it ever starts doing that on the sides, I'll probably strip it, prep it and DuraCoat.
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Posted: 3/26/2018 8:58:50 PM EDT
[#3]
Quote HistoryQuoted:
The two flat spots inside the 'magazine well' of my PS90 flaked off the first week I had it. I don't think they bother to prime/prep the aluminum. If it ever starts doing that on the sides, I'll probably strip it, prep it and DuraCoat. |
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Posted: 3/26/2018 10:31:28 PM EDT
[#4]
The best thing you can do is to sand out all of the casting markings and have it refinished.
I block sanded this PS90 Receiver and you can see it’s FAR from flat and very porous. I had many more hours of sanding to get it where it needed to be. 
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Posted: 3/27/2018 1:27:54 AM EDT
[#5]
I don't own one, but I think if I was going through the effort of refinishing, I would go ahead and remark it P90.
(Assuming it hadn't been SBR'd yet.) |
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Posted: 3/28/2018 12:25:26 PM EDT
[#6]
Here is what mine is doing. Any reason. Why FN would not cover this?
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Posted: 3/28/2018 1:12:07 PM EDT
[#7]
Quote HistoryQuoted:
Here is what mine is doing. Any reason. Why FN would not cover this? https://s18.postimg.org/h48xxmnrd/20180328_112019.jpg |
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Posted: 3/28/2018 8:25:02 PM EDT
[#8]
Here are a couple of examples of extremes on the PS90 receiver.
Here is a VERY CRAPPY casting....  The rest of these photos are of a heavily customized PS90 receiver where the top was removed and a Picatinny Rail was added on.... 
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Posted: 3/28/2018 11:33:51 PM EDT
[#9]
Mine is a SBR. Anyone know of a highly reputable place that can dissasemble, strip receiver, refinish, and reassemble?
And I don't mind the casting markings. The finish coming off bothers me badly however. |
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Posted: 3/29/2018 12:12:43 AM EDT
[#10]
Quote HistoryQuoted:
Mine is a SBR. Anyone know of a highly reputable place that can dissasemble, strip receiver, refinish, and reassemble? And I don't mind the casting markings. The finish coming off bothers me badly however. 
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Posted: 3/29/2018 9:10:52 AM EDT
[#11]
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Posted: 3/29/2018 12:48:40 PM EDT
[#12]
Quote HistoryInteresting. I've sent a number of pieces to them over the last couple of years without any issues.
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Posted: 3/29/2018 2:25:58 PM EDT
[#13]
Quote HistoryQuoted:
Interesting. I've sent a number of pieces to them over the last couple of years without any issues. He has even been banned from other forums due to his problems. |
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Posted: 3/31/2018 6:09:47 AM EDT
[#14]
Another one of my projects on the short list, the crappy casting has always bothered me, strip, sand (a lot) and then duracoat.
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Posted: 3/31/2018 9:49:38 AM EDT
[#15]
Quote HistoryQuoted:
Another one of my projects on the short list, the crappy casting has always bothered me, strip, sand (a lot) and then duracoat. |
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Posted: 9/8/2018 8:57:56 PM EDT
[#16]
Sent my PS90 SBR to Capital Armory 5 weeks ago for Cerakote and got it back today. Looks great. Hope this finish holds up better than the factory did as that was pathetic.
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Posted: 9/9/2018 2:07:37 AM EDT
[#17]
Quote HistoryQuoted:
Here are a couple of examples of extremes on the PS90 receiver. Here is a VERY CRAPPY casting.... The rest of these photos are of a heavily customized PS90 receiver where the top was removed and a Picatinny Rail was added on.... |
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Posted: 9/9/2018 9:29:09 AM EDT
[#18]
That’s a completely custom job, I’m pretty sure they machine out the rail themselves and cut the receiver then weld the rail on.
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Posted: 9/9/2018 9:38:35 AM EDT
[#19]
Quote HistoryQuoted: What Picatinny Rail is that? Who makes or sell it? Or are you talking about the custom reciever which was cut? |
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Posted: 9/9/2018 2:39:31 PM EDT
[#20]
Quote HistoryQuoted:
CMMG makes them. Have one on each side. They screw in using the factory holes. Or are you talking about the custom reciever which was cut? Quote HistoryQuoted:
Quoted: What Picatinny Rail is that? Who makes or sell it? Or are you talking about the custom reciever which was cut? What part of the ps90 is registered? Its that top reciever part right? How hard is it to get that barrel detached? If i sand down the ruff parts or cerakote it will the gun lose value? (I can cerakote it my self) If it gets SBRed does it actually need to be engraved? I have read a lot of conflicting info on that. If it does where is the least visable place to do that? Does it even have to be visable? Or can it be on the underside of the reciever some where? Thanks for all the help! |
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Posted: 9/9/2018 3:30:44 PM EDT
[#21]
Quote HistoryQuoted: Im talking about the custom receiver. Wondering where to buy one. What part of the ps90 is registered? Its that top reciever part right? How hard is it to get that barrel detached? If i sand down the ruff parts or cerakote it will the gun lose value? (I can cerakote it my self) If it gets SBRed does it actually need to be engraved? I have read a lot of conflicting info on that. If it does where is the least visable place to do that? Does it even have to be visable? Or can it be on the underside of the reciever some where? Thanks for all the help! The metal part, which is the receiver is the registered part. Not the plastic part. Not hard at all to get the barrel detached. Google PS90 barrel change. Lots of info and pics out there on this. If you have a good finish on yours I would not touch it. If not, then a good cerakote job will not cause it to loose vaule Making the PS90 into a SBR will require you to engrave it. It does have to be visible without disassembly. My info is just below the caliber. No one ever notices it till I point it out as the ATF standard is very small, and I had mine blacked out to match finish. |
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Posted: 9/9/2018 7:23:24 PM EDT
[#22]
Quote HistoryQuoted: Im talking about the custom receiver. Wondering where to buy one. I’d have to look it back up, I do remember they said it’s EXPENSIVE! They have a lot of hand sanding in it. What part of the ps90 is registered? Its that top reciever part right? How hard is it to get that barrel detached? If i sand down the ruff parts or cerakote it will the gun lose value? (I can cerakote it my self) My .02, the value will increase. FN’s paint job leaves a LOT to be desired. And most of the castings are ROUGH! If it gets SBRed does it actually need to be engraved? I have read a lot of conflicting info on that. If it does where is the least visable place to do that? Does it even have to be visable? Or can it be on the underside of the reciever some where? Thanks for all the help! |
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