FNH 16" FN15 Tactical Carbine Knowledge Required

Northaways

Northaways

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Hoping some knowledgeable CGN'er can advise if the 16" FN15 Tactical Carbine factory flash hider is pinned, welded, staked, locktighted etc on?

Trying to remove it to put a muzzle brake on but it won't budge and don't want to over torque and damage the rifle.

I can't see any indication whatsoever of it being pinned, welded or staked. Have also applied heat but still no joy.

Called FNH in the US and no luck there either. They advised they could not provide an answer to this simple question because I was Canadian and US gun laws didn't permit it. Unbelievable! They instead referred me to one of their Canadian FN distributors. After major run around finally connected with this guy who advised the flash hider was apparently staked on.

If this is in fact the case I don't want to fool around with it and will have a professional do the work. So spoke to Casey at Tac Ord yesterday. He did a great job on my Versa Max Tactical and I have a lot of faith in him. He will of course do the work but can't advise what's what till he see's the rifle. He however thought it was highly unlikely that the flash hider was staked on as the FN Canadian dealer rep suggested.

Anyone out there have the same rifle and can advise on the flash hider removal?
 
Staking usually is something threaded up against something solid and then punched. Or a bolt where the surrounding material is punched against the bolt. Usually pretty obvious. At least that's how I understood it. Maybe wrong. Don't see how the flash hider could be staked - staking it against the crush washer wouldn't make any difference I think, because the crush washer can move.

Does it have a crush washer - it can be pretty damn tight to get moving - do you have a BEV block or clamp to support the upper while you're trying move the flash hider?
 
Yes, there appears to be a couple crush washers on it. And yes, if it was staked it should be pretty obvious, but there is no indication of this or a pin. Have the AR barrel clamps but it is so tight I am afraid of torquing it to hard and damaging the barrel or something else.

Had another fairly knowledgeable amateur gunsmith that works at my range look at it and he was also afraid of over torquing it. He applied heat as well with no luck.
 
Northaways said:
fairly knowledgeable amateur gunsmith
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Northaways said:
Yes, there appears to be a couple crush washers on it. And yes, if it was staked it should be pretty obvious, but there is no indication of this or a pin. Have the AR barrel clamps but it is so tight I am afraid of torquing it to hard and damaging the barrel or something else.

Had another fairly knowledgeable amateur gunsmith that works at my range look at it and he was also afraid of over torquing it. He applied heat as well with no luck.
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I see no reason why it would be "staked" and I doubt that it would come "pinned" from FN, since it was coming up north?, that said, FH are made to be taken off & on. I'm guessing that maybe they applied some sort of "loctite" ? without seeing it, I can't be sure.

Clamp it in a vise use using "soft jaws" and apply some heat to loosen up the loctite? and try it again.

The "torque" specs on the FH are low, I've never installed one and "torqued" it? just an FYI.
 
Update: Canadian FNH rep checked with FNH and they advised their flash hiders are not pinned or welded. However they might have been installed with Rocksett.

So dipped flash hider in boiling water for 15 minutes in event Rocksett was used and gave it another try. Still no joy.

So took it to Casey at Tac Ord. Initially wouldn't budge for him either. Then he removed handgaurd and used his barrel clamp, gave the wrench a good twist and off she came.

Just needed the right man with the right tools for the job. Caseys the man:)
 
Northaways said:
Update: Canadian FNH rep checked with FNH and they advised their flash hiders are not pinned or welded. However they might have been installed with Rocksett.

So dipped flash hider in boiling water for 15 minutes in event Rocksett was used and gave it another try. Still no joy.

So took it to Casey at Tac Ord. Initially wouldn't budge for him either. Then he removed handgaurd and used his barrel clamp, gave the wrench a good twist and off she came.

Just needed the right man with the right tools for the job. Caseys the man:)
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Good stuff and congrats, why they would install it with Rocksett is beyond me. Glad it worked out for ya.
 
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