Can I change the length of a SBR after I get the Tax Stamp?

[BSA1]

Is it correct that when I apply for a SBR Tax Stamp I must list the length of the gun on the application form?

If so what length should I list on a AR SBR with adjustable stock? I would guess the shortest length when the stock is fully collapsed.

What about a gun with a fixed wood stock such as a Trapper Lever Action Carbine? For whatever reason I decide another length of the stock is better for me.

 

[pdsmith505]

Is it correct that when I apply for a SBR Tax Stamp I must list the length of the gun on the application form?

That is correct.

If so what length should I list on a AR SBR with adjustable stock? I would guess the shortest length when the stock is fully collapsed.

Barrel length plus 19" is what most everyone uses for AR's with carbine stocks. Stock should be fully extended per the instructions on Form 1:

k. Description of Firearm and Markings. (1) Item 4a. If you are modifying an existing firearm, enter the name and location of the original manufacturer. If you are creating the firearm, enter the maker’s name, city and state. (2) Item 4b. The types of NFA firearms are listed in the definitions; (3) Item 4c. Specify one caliber or gauge. If there is another designation, indicate the designation in item 4h. (4) Item 4d. Show the model designation (if known). (5) Item 4e and 4f. Specify one barrel length and overall length in items 4e and 4f as applicable. Note: if the firearm has a folding or collapsible stock, the overall measurement is to be made with the stock extended. (6) Item 4g. Do not alter or modify the serial number of an existing firearm . Enter the existing serial number or, if a new firearm, one you create. (7) Markings: The maker is required to mark the firearm with the maker’s name, city and state as shown in item 3b. All markings are to be in compliance with 27 CFR 478.92 and 479.102

What about a gun with a fixed wood stock such as a Trapper Lever Action Carbine? For whatever reason I decide another length of the stock is better for me.

I suppose you could always write to the NFA branch to have them amend the entry in the registry, but I doubt you would ever have an issue.

 

[Hoser]

If it is a permanent change, yes.

 

[kimberkid]

I've always heard that after you get your stamp you can put any length barrel on it you want as long as you retain your original barrel ... just in case anyone ever comes to check you.

In the case of a permanent change I think you need to send a letter to them advising of the change ... just like if you move to another city or state.

 

[BSA1]

So the length of a AR with a 10.5” barrel is 29.5” ?

 

[pdsmith505]

So the length of a AR with a 10.5” barrel is 29.5” ?

That's what's on my Form 1.

 

[dogtown tom]

I've always heard that after you get your stamp you can put any length barrel on it you want as long as you retain your original barrel ... just in case anyone ever comes to check you.

In the case of a permanent change I think you need to send a letter to them advising of the change ... just like if you move to another city or state.

1. There is no requirement to keep the original barrel.
2. No one will come check on you.
3. ATF "asks" that you notify them of a permanent change, but no law requires such.
4. "Permanent"..........virtually any change to a firearms barrel length is not permanent. You can buy and install another bbl, weld/pin/solder, add/remove stocks, etc.