Being more of a smart @ss that normal - yes it is a weapon; I can detach it and beat someone over the head with it...and all weapons are weapons of war....
but that can it be carry on answer would be very interesting to know...but my guess - it is a gun part......
my google search indicated
Firearm parts, including magazines, clips, bolts and firing pins, are prohibited in carry-on baggage, but may be transported in checked baggage. Replica firearms, including firearm replicas that are toys, may be transported in checked baggage only
I thought it would be the FAA doing the limitation, but...
more searches from siencerco website
Nov 22, 2022 ? The suppressor cannot be brought into the cabin in a carry-on bag. ... According to the ATF, ?Any person may ship a firearm to himself or ...