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Posted: 4/4/2014 7:27:58 AM EDT
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Do I need barrel shims from a Fortis rail install?
I feel like my ejection port cover ROD is hitting or bottoming out on my barrel nut. Everything was seated, lined up, torqued, greased, re-torqued, seated, blah blah appropriately. 45-50ft-lbs. The upper half of the Fortis rail fit perfectly.. but I had interference with the lower half clam shell and the dust cover rod. Voodoo barrel Seekins SP223 upper Fortis Rail PSA barrel nut. I also have a spikes shim kit that I have been messing with too. |
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K that's what I thought.
Question - spikes shims which I already have. I assume they can go on either side of the extension? Meaning 2 places- One in-between the receiver face and the barrel -The other Between the barrel nut face and the extension face. Correct? I see literally no need to put them on the receiver side.. but its kind of annoying to have to shim the ar15 barrel nut out. Is that typical? |
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I'm not sure how typical it is but if you watch this video it shows how to do it. I'm sure it would work fine either way
http://bisonarmory.com/ar-15-barrel-nut-shim-set/ Also is it just barely bottoming out or like it still has along way to go? One of mine is close but I've personally never ran into this problem before. |
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