Question about transfering the serial #

Hi,
I have a Romak 992 single stack trunnion with #'s on it, and wondered if I could transfer those #'s to the home built receiver, then destroy the old trunnion??
Thanks in advance

You can put any number you want on a home built receiver, as long as you don't sell it you aren't required to mark it at all. Why would you want to destroy the old trunnion?

You aren't "transferring" a serial number, you are building a new receiver from a different manufacturer (you) and the old one is still the old one.

Hey Kernel!

Man, I can allways count on you to come to the rescue :)

Years ago I had that 5.45 single stack job, I got bored with it and used the receiver for a parts kit.

Well this was years ago (I was inexperienced, you know.....stupid :D ) and wrecked the receiver.

It got trashed and I've had the trunnion (which is wrecked also) ever since.
I use it now only for hole placement.

Sorry I did'nt explain it well enough (Duh)

Oh, on another note, when buiding one, is it o.k. to still weld those 4 upper front trunnion rivets and then screw/rivet the one at the mag well ??

Thanks so much

Ask 5 different people about a weld/screw/rivet hybrid and you'll get 7 different answers and a fistfight. Personally, I've used all three methods and so far nothing's come apart on me. Rivets are the "correct" factory method, but I have also seen post sample MGs built with the other methods still shooting fine after many thousands of rounds.

I know. I kinda paused a bit when writing that in fear.
You are right. I know the rivet way is the "correct" way.
I might still do the rivits :)

Any idea's though on that ser.# thing?
Thanks

Am I missing something? The trunnion number is not considered at all, it is
the receiver that is registered. You could own 100 trunnions with the same
number and it wouldn't matter.

You can put whatever number you want on a homemade receiver, you are making a brand new receiver that has no legal connection to the old one. You can get custom serial #s on NDS receivers, as long as NDS hasn't used it before they could put that number on there too. Many people do this so it matches the trunnion # on their kit.

Destroying the trunnion is not needed, it's legal status doesn't change because a new receiver shell out there has the same number on it.

The only legal issue in your sitch is what happened to the old receiver shell. If you removed it intact and could re-use it on another trunnion/kit then ATF might say you had an unserialed commercial receiver in your posession. Since you tossed it, not an issue. The only other conceivable issue is ATF might consider the trunnion off the old receiver to be the receiver. Don't ever sell it and no problems.

BigWheel, imported semi auto AK rifles have the trunnion serial # only, none on the shell. At one time ATF considered the trunnion a part of the receiver, you had to cut through it to demill a rifle. At some point they changed their mind and went with the sheetmetal is the receiver, so US made ones are marked on the shell.

Only legal issue is if you remove the imported shell from a trunnion in good enough shape to re-use, you have in effect created an unnumbered receiver. Since the one in question was destroyed the remaining trunnion is not a problem, at worst it would still be considered a receiver by itself due to it's history.

thanks Kernel

O.k., thanks for explaining it. :)