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3/3/2005 10:30:46 PM EDT
I have a nice polytech, but of course it has a neutered flashider.  I know the fh's are usually either silver soldered on , or tac welded.  I cannot see a tac weld, and the castlenut moves about half way before getting tight (I don't have castlenut pliers, so don't know if it will come off)

Anyway, instead of the hassle of getting it off and replacing it, has anyone just taken their time with a dremel tool and recut the slots in the hider?  All the indents are there, so I figure if I cut them very straight, and mike them to make sure all the cuts start and end in the same place, it should be good....

Thoughts, and opinions please???

thanks in advance!
3/4/2005 2:02:11 AM EDT
[#1]
I don't see why it could not be done. I got mine off with a brass punch and hammer tapping the nut till it was off then tapped the back of the flash hider it came right off. You need to go easy on the nut they are hard to replace.
3/4/2005 12:11:27 PM EDT
[#2]
There was a guy on here with a link to a site that sells the front site/FH for either $30 or $40. I think you would spend that much on cutting discs for the dremel

I was lucky enough to purchase my Polytech with the bayo lug on it( someone obviously put it on there after later, it looks blued rather than parked)

WIZZO
3/4/2005 12:15:32 PM EDT
[#3]
I am sure I could do it, however, I found on dpms new flashiders for $30, so it may be just as easy to buy it.  I have read however that the castle nut on the polytech IS NOT the same as a usgi in the threads, so i will have to reuse it.  Will have to be careful on that one,,,lol

stay tuned!
3/4/2005 12:15:37 PM EDT
[#4]
I took off the nut with the specialty tool (basically a spanner wrench) put action in a vice and took it off it was on tight but did release. I did it years ago so my memory is a little foggy, but they do come off.
I did use the Polytec nut.
3/5/2005 2:25:21 AM EDT
[#5]
Not all Chinese muzzle devices were welded on. Mine were not. If yours is, you would see the weld. Get a pair of castle nut plyers and take the thing off. Also, the thread pitch is so close to USGI that a USGI nut will work. You simply run the USGI nut on the threads a few times and the threads will adapt perfectly. Both of my Poly barrels have a USGI castle nut that I put on myself.
3/5/2005 7:15:47 AM EDT
[#6]
now if I only  had some castle nut pliers,,,lol
3/5/2005 9:42:02 PM EDT
[#7]
Why waste your time cutting up the Chinese one?  DPMS sells a pretty nice imported investment cast part for about $30.  I put one on my PolyTech and it fit perfectly.  A little work at the range and the front sight was setup just right.
3/5/2005 10:25:49 PM EDT
[#8]

Quoted:
Why waste your time cutting up the Chinese one?  DPMS sells a pretty nice imported investment cast part for about $30.  I put one on my PolyTech and it fit perfectly.  A little work at the range and the front sight was setup just right.



whoa, so its leagal to put on an imported FH on a chicom m14 without changing anything else to meet the US parts compliance thingie?

i also want to get a good FH for my norinco....and if can put that import dpms on w/ out changing all of the parts compliance thing, then i will

so how about it?
3/6/2005 8:24:36 AM EDT
[#9]

Quoted:

Quoted:
Why waste your time cutting up the Chinese one?  DPMS sells a pretty nice imported investment cast part for about $30.  I put one on my PolyTech and it fit perfectly.  A little work at the range and the front sight was setup just right.



whoa, so its leagal to put on an imported FH on a chicom m14 without changing anything else to meet the US parts compliance thingie?

i also want to get a good FH for my norinco....and if can put that import dpms on w/ out changing all of the parts compliance thing, then i will

so how about it?



You are correct. You must comply with the 89 import ban and the domestic parts count. AFIK, DPMS sells imported flash suppressors. Of course, it's your rifle and you are free to weigh the risks, however "risky" they may be.
3/6/2005 12:50:06 PM EDT
[#10]
ok thanks
3/6/2005 3:25:24 PM EDT
[#11]
Before you cut anything, unscrew the castle nut up tight against the flash hider toward the muzzle.  Now, take a block of wood and place it on the back of the flash hider, right along the barrel.  Carefully whack that wood a couple of times and then test to see if you can continue turning the castle nut. You should be able to. That flash hider is simply an interference fit.  With a few more whacks and twists of the nut, it should just pop off in your hand if it isn't soldered on.

That's what I was able to do on my Poly.

Rome
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