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Old May 15, 2019, 08:44   #1
STGguy
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Helo "unscrewing" my first barrel/ receiver...

Hello,

After having my FALs built and worked on for me since 2000 and also building many savage rifles, custom mausers, 1911's and of course AR's, I am ready to try "sticking my toe in" and doing a little of my own work on FAL's.

I am getting a receiver wrench and barrel blocks off a friend and after doing searches and reading what I could, I just thought I'd help.

Can you all point me in the right direction to learn the tricks "paper/ rosin in the blocks?, how to not mess up your stuff- barrel or receiver, etc.

The bigger issue I see is the first two barrels I want to unscrew are not standard profile barrels.

1 is a build IZZY on a receiver I want and the Other is a DS forged receiver that someone screwed a DS Arms Med Contour barrel on to so their both fatter than normal. The DS may taper to standard size after the first 8-10" but what s the deal with unscrewing those/ barrel blocks for those or whats the trick?

Thank you as always for your help and expertise! I appreciate all that you all do and share.
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Old May 15, 2019, 08:51   #2
meltblown
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Wrap the front of the receiver where the wrench sits with electrical tape. Support the charging handle slot with a charging handle in backwards. Sheet of copy paper between the barrel and the vise.

We don't know the profile of your barrel vise but just check it out. How are you going to hold the barrel vise? In a bench vise? I use a 12 ton press
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Old May 15, 2019, 08:55   #3
Invictus77
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One single layer of notebook paper will help the vise grip the barrel (not spin in the vise) and also protect the barrel finish. I've heard mention of the rosin idea, but I have never used it nor needed more than the single layer of paper.

I have never mounted/unmounted a larger than standard profile FAL barrel and cannot speak to how the standard FAL vise would grip it. I know my Brownell's barrel vise has multiple size inserts that can be shimmed a bit with copper or brass strips and works without being perfectly contoured to an exact diameter, but YMMV.


ETA: Oh yeah, and what MB said about wrapping the receiver in electrical tape. I back wrap it sticky side out a few laps, then turn it around normal a few turns so I don't get "sticky" on the receiver. My ratas caliente wrench does not contact the charging handle slide, but some wrenches do, so his "backward" charging handle idea is also good if yours does.
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Old May 15, 2019, 09:33   #4
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And a gas tube collar screwed into the receiver so you donít squish the hole when you go Cro-Magnon on that 6-foot cheater bar
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Old May 15, 2019, 10:19   #5
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And...AND don't forget the handguard ring when reassembling barrel to upper receiver.

If you leave it off you risk losing your FAL man card.

I've never done this heinous act myself but many here have and then they are limited to posting in the basement!!
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Old May 16, 2019, 10:13   #6
STGguy
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Good Info!

Hello All,


This is great info! Im learning a lot, nervous about actually cranking on it for the first time. Im still wondering about the diameter of the barrel. I'll just need to see if there's another size barrel block for a heavy barrel- or if I can grasp at least the DSA Med Contour ahead of the medium contour- thicker area. Is that an ok practice? Grabbing the barrel in the blocks about 12" out from the receiver or is that a bad idea?

Best Regards,

Bob
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Old May 16, 2019, 11:13   #7
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Quote:
Originally Posted by STGguy View Post
I'll just need to see if there's another size barrel block for a heavy barrel- or if I can grasp at least the DSA Med Contour ahead of the medium contour- thicker area. Is that an ok practice? Grabbing the barrel in the blocks about 12" out from the receiver or is that a bad idea?

Best Regards,

Bob
NO, thats too far out to grab the barrel!
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Old May 16, 2019, 11:23   #8
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Measure the barrel dia. where the blocks should grab it.

Drill the corresponding size hole in a wood block, preferably a hardwood, but not necessary. Cut the block in half through the center of the hole...waa laa, barrel blocks that fit. Ive build many HB's using them. Recently gave my sets away to another member here....

I could make you a set out of Teak if you could wait a couple days for shipping....
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Old May 16, 2019, 16:29   #9
STGguy
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Im coming

Quote:
Originally Posted by 4x401 View Post
Measure the barrel dia. where the blocks should grab it.

Drill the corresponding size hole in a wood block, preferably a hardwood, but not necessary. Cut the block in half through the center of the hole...waa laa, barrel blocks that fit. Ive build many HB's using them. Recently gave my sets away to another member here....

I could make you a set out of Teak if you could wait a couple days for shipping....
IM coming...
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Old May 17, 2019, 10:12   #10
STGguy
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I kind of thought so....

Quote:
Originally Posted by 4x401 View Post
NO, thats too far out to grab the barrel!
I kind of thought so! lol... Good try on my part! Its never easy is it! lol

Thank you very much for your help and very generous offer/ IM.

Im in!
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