Kentucky Armory Club

On the form 1 it asks for caliber. Since this is on the form and has to be engraved on the receiver, am I limited to the caliber I can LEGALLY shoot with the rifle? I have my stamp listed for 30cal. IS it ok to run a short barreled 223 upper?

iron369 wrote:On the form 1 it asks for caliber. Since this is on the form and has to be engraved on the receiver, am I limited to the caliber I can LEGALLY shoot with the rifle? I have my stamp listed for 30cal. IS it ok to run a short barreled 223 upper?

The only makers mark that is required is name , city and state.
The caliber is made on the lower be the original maker, not by the Form 1 manufactor (you).

Unless you are the original manufactor.

So yes you, can legally shot a .223 upper

The lower was marked as "multi". I saw it suggested several places to not put that on a form 1 so I didn't

iron369 wrote:The lower was marked as "multi". I saw it suggested several places to not put that on a form 1 so I didn't

Multi will get you denied and in the back of the line when you resubmit. Pick a caliber, list it on the form and shoot whatever caliber you like once you receive your permission slip.

There are some useful form 1 guides out there.

That's what I did. Just didn't know if it limited me when it's approved.

No you can change the upper on your SBR to anything longer or the same barrel length that is on your form 1. They dont worry about caliber unless its a permanent change. Then you need to send the ATF a letter to update the registry.

Like mine is a 7 1/5 5.56. So I have 10.5 5.56 and 8 300 BLK. I can swap them around as long as I can put it back to the original config.

Good deal. Thanks.

This is very good to know...

Dustin wrote:No you can change the upper on your SBR to anything longer or the same barrel length that is on your form 1. They dont worry about caliber unless its a permanent change. Then you need to send the ATF a letter to update the registry.

Like mine is a 7 1/5 5.56. So I have 10.5 5.56 and 8 300 BLK. I can swap them around as long as I can put it back to the original config.

So you couldn't use an upper with a 6" 300blk barrel? I don't think that is correct.

Tyler wrote:

Dustin wrote:No you can change the upper on your SBR to anything longer or the same barrel length that is on your form 1. They dont worry about caliber unless its a permanent change. Then you need to send the ATF a letter to update the registry.

Like mine is a 7 1/5 5.56. So I have 10.5 5.56 and 8 300 BLK. I can swap them around as long as I can put it back to the original config.

So you couldn't use an upper with a 6" 300blk barrel? I don't think that is correct.

Yes you can use that

From what I have read yes. But I'm not a lawyer. It's been a while since was at a holiday inn.

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