Threaded Rod to Swap GB/FSB

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busdrvr
Posts: 14
Joined: Wed Jul 15, 2020 7:35 pm

Threaded Rod to Swap GB/FSB

Post by busdrvr »

Planning on pressing off a GB and FSB and looking for an easy/safe way to reinstall the new components.

This is a complete rifle (milled receiver) so I can't use my Toth barrel tool, which would make things easier.

Can I use some threaded rod through the barrel and pull the new GB/FSB on?

1biggun
Posts: 227
Joined: Fri Jul 10, 2020 5:57 pm

Re: Threaded Rod to Swap GB/FSB

Post by 1biggun »

you will need some correct size tubing as well

busdrvr
Posts: 14
Joined: Wed Jul 15, 2020 7:35 pm

Re: Threaded Rod to Swap GB/FSB

Post by busdrvr »

I can find some tubing.

Sounded like a quick and easy way to get the job done

esh21167
Posts: 52
Joined: Sun Jul 12, 2020 1:03 pm

Re: Threaded Rod to Swap GB/FSB

Post by esh21167 »

1biggun wrote:
Sun Jul 19, 2020 6:57 pm
you will need some correct size tubing as well
Some might call you Bubba, but this is an effective method, especially if you get the interference fit down to .001". I often use a piece of 1" diameter aluminum that I drilled a hole about 1/32" larger than the barrel diameter through, and tapped components on. At worst, I've seen a slight discoloration on the component from the aluminum, which wipes right off.

1biggun
Posts: 227
Joined: Fri Jul 10, 2020 5:57 pm

Re: Threaded Rod to Swap GB/FSB

Post by 1biggun »

The fit can be less than .001" on the components.

Chill the barrel .
Warm the components in a electric skillet with oil or some other way.
Slide the part on a quickly tap into place. Have it aligned up when you start.
Use aluminum tubing or simular as mentioned above.

I like about .005" to .0075" on the components.

1biggun
Posts: 227
Joined: Fri Jul 10, 2020 5:57 pm

Re: Threaded Rod to Swap GB/FSB

Post by 1biggun »

The fit can be less than .001" on the components.

Chill the barrel .
Warm the components in a electric skillet with oil or some other way.
Slide the part on a quickly tap into place. Have it aligned up when you start.
Use aluminum tubing or simular as mentioned above.

I like about .0005" to .0075" on the components.
Last edited by 1biggun on Tue Jul 21, 2020 12:18 am, edited 1 time in total.

esh21167
Posts: 52
Joined: Sun Jul 12, 2020 1:03 pm

Re: Threaded Rod to Swap GB/FSB

Post by esh21167 »

1biggun wrote:
Mon Jul 20, 2020 9:26 pm
The fit can be less than .001" on the components.

Chill the barrel .
Warm the components in a electric skillet with oil or some other way.
Slide the part on a quickly tap into place. Have it aligned up when you start.
Use aluminum tubing or simular as mentioned above.

I like about .005" to .0075" on the components.
.005" - .0075" interference? I'll bet you mean .0005" - .0075". But what's a decimal place among friends? ;)

I like it just under .001 as well because I don't have all the fancy press fixtures. Tap 'em on.

1biggun
Posts: 227
Joined: Fri Jul 10, 2020 5:57 pm

Re: Threaded Rod to Swap GB/FSB

Post by 1biggun »

esh21167 wrote:
Mon Jul 20, 2020 11:23 pm
1biggun wrote:
Mon Jul 20, 2020 9:26 pm
The fit can be less than .001" on the components.

Chill the barrel .
Warm the components in a electric skillet with oil or some other way.
Slide the part on a quickly tap into place. Have it aligned up when you start.
Use aluminum tubing or simular as mentioned above.

I like about .005" to .0075" on the components.
.005" - .0075" interference? I'll bet you mean .0005" - .0075". But what's a decimal place among friends? ;)

I like it just under .001 as well because I don't have all the fancy press fixtures. Tap 'em on.
Damn it.
Yes .0005" or 1/2 thousands .

Thanks for catching that .

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