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Thread: Geiselle rail question
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February 7th, 2022, 08:57 AM #1Super Member
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Geiselle rail question
I just got an FN 14.7 barrel from PSA with the Geiselle rail installed.
The Geiselle rail looks a little more rotated to the right where the upper meets the rail.
I havent shot it yet but it seems sturdy and doesnt rotate.
This is my first Geiselle rail set up. I'm afraid if the front BUIS wont line up with the rear BUIS.
Is this normal?
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February 7th, 2022, 09:36 AM #2
Re: Geiselle rail question
What rail series? There are different types of lockups for Geissele rails.
Needs pictures. Sounds like the PSA employee didn't follow Geissele protocol.
Probably something easily correctable. If you end up taking the rail off just follow the Geissele instructions to reinstall and that should fix it. You'll preferably need a torque driver. Very easy though.
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February 7th, 2022, 11:34 AM #3Super Member
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Re: Geiselle rail question
MK14, it comes with the PSA FN 14.7 barrel. One of their premium offerings.
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February 7th, 2022, 12:14 PM #4Senior Member
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Scott Twp,
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Re: Geiselle rail question
Should be a simple fix. Loosen the set screws towards the bottom of the receiver at the barrel nut. Then loosen the two main cross bolts. At this point, you should be able to rotate the rail. I believe Geissele suggests using a single piece scope mount to clamp the rail inline with the receiver. Then just torque the cross bolts back to spec, and snug the little set screws back up.
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February 7th, 2022, 12:39 PM #5
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February 7th, 2022, 04:52 PM #6Super Member
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Re: Geiselle rail question
Do you know what size Allen keys are needed? Also I dont have a torque wrench.
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February 7th, 2022, 11:26 PM #7Super Member
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Re: Geiselle rail question
So I loosened the 4 screws but still couldn't rotate the rail.
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February 8th, 2022, 02:58 AM #8
Re: Geiselle rail question
You have to back out the set screws common to the receiver enough to allow the rotation, not just loosen them. The cross screws common to the barrel nut need to be pretty loose as well. The fit between the nut and rail is tight. It doesn*t take much tension on them to lock it tight.
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February 8th, 2022, 03:29 PM #9Super Member
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Re: Geiselle rail question
I took care of it with a plastic hammer, once the screws are loose.
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February 8th, 2022, 04:17 PM #10
Re: Geiselle rail question
Glad it*s handled. They are nicely machined. They ship with the nut in the rail. Getting it out can be a chore.
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