Delta Nut question

[Barang]

when you replace a barrel, do you change the whole assembly (photo above)? if not, which part/s is reusable?

[SVT-40]

It's all reusable if you're installing the same GI style hand guard.

[FeuerFrei]

Yep. All re-usable. Just clean off old anti-seize and re-apply new stuff.

[Barang]

It's all reusable if you're installing the same GI style hand guard.

Yep. All re-usable. Just clean off old anti-seize and re-apply new stuff.

good to know. thank you gents.

[baih777]

You will need a barrel that has all that installed.already. which means a barrel with the front sight already installed. Or use all your old parts with a new gas block. If you try and use your old front sight. Get the jig to hold the front sight in place to remove the pins.

If you change to a full floating handguard. To upgrade your barrel.
None of those.parts.are.used.

Post a.pic of the barrel you want to use.

[Barang]

You will need a barrel that has all that installed.already. which means a barrel with the front sight already installed. Or use all your old parts with a new gas block. If you try and use your old front sight. Get the jig to hold the front sight in place to remove the pins.

my 18" barrel came yesterday (been waiting for many months). will be replacing one of my 16" mock dissi rifles to 18".

[ar15barrels]

when you replace a barrel, do you change the whole assembly (photo above)? if not, which part/s is reusable?

All of that is usually part of a complete barrel assembly.
If your new barrel assembly is not complete, you can move some of your old barrel nut parts on to it as needed.

[Barang]

All of that is usually part of a complete barrel assembly.
If your new barrel assembly is not complete, you can move some of your old barrel nut parts on to it as needed.

i ordered bare barrel so good to know that i can transfer them on to the new barrel. thank you.

[ar15barrels]

i ordered bare barrel so good to know that i can transfer them on to the new barrel. thank you.

You will not be able to transfer your front sight base to the bare barrel so hopefully you are planning to use a low profile gas block and a freefloat handguard.
That being the case, you won't need to worry about transferring your barrel nut and delta ring parts.

[bohoki]

if it has the front sight installed it often comes with the nut so you need to add you own spring delta ring and snap ring

if you buy a bare barrel you will put your "nut" or free float system on before the gas block

[Barang]

You will not be able to transfer your front sight base to the bare barrel so hopefully you are planning to use a low profile gas block and a freefloat handguard.
That being the case, you won't need to worry about transferring your barrel nut and delta ring parts.

if you buy a bare barrel you will put your "nut" or free float system on before the gas block

okay, i have to slow down and really think about whether i want free float or put everything back on the new barrel. if the latter, i need to send it out for fsb installation. hmmm ...

[SVT-40]

okay, i have to slow down and really think about whether i want free float or put everything back on the new barrel. if the latter, i need to send it out for fsb installation. hmmm ...

Free floating is a better option. But as you suggested slow down and figure out what you really want to do. There are so many options if you free float. Different hand guards and gas blocks...

There really isn't a down side to using a free floating hand guard... Maybe a bit more expensive, but it will leave you with many more options for optics, lights, magnifiers and sling mounts.

[ar15barrels]

There really isn't a down side to using a free floating hand guard...

There is one other than cost.

A freefloat rail mounted front sight is not as reliable as a barrel mounted front sight because the freefloat rail and barrel move around in relation to each other due to both the barrel's thermal expansion drift and sling or hand tension on the handguard.

Here is my test showing what 3 lbs of force does:

[bohoki]

i have 2 uppers i assembled one used a steel gas block that used set screws another is a gas block that was aluminum that clamped on

i suggest that the clamp type is easier and i have more confidence in if you are planning on doing it yourself

[Barang]

Free floating is a better option. But as you suggested slow down and figure out what you really want to do. There are so many options if you free float. Different hand guards and gas blocks...

There really isn't a down side to using a free floating hand guard... Maybe a bit more expensive, but it will leave you with many more options for optics, lights, magnifiers and sling mounts.

yeah! been checking sights (fixed and flip), handguards and others. i hear my wallet groan!

There is one other than cost.

A freefloat rail mounted front sight is not as reliable as a barrel mounted front sight because the freefloat rail and barrel move around in relation to each other due to both the barrel's thermal expansion drift and sling or hand tension on the handguard.

Here is my test showing what 3 lbs of force does:

do handguard and delta assembly make it more stable because of the tension the delta spring make by pushing the handguard against the fsb?

i have 2 uppers i assembled one used a steel gas block that used set screws another is a gas block that was aluminum that clamped on

i suggest that the clamp type is easier and i have more confidence in if you are planning on doing it yourself

i have gas blocks with set screws and couple of virgin fsb in my spare box. fortunately, the new barrel has dimple opposite of gas hole if i go that route.