At the moment I have a blaser rifle r93 with 3 barrels, .308, 6.5 x 55 and .243. My rifle is listed on my certificate as .308 rifle with 6.5 x55 spare barrel, and .243 spare barrel.
My sound moderator is listed as .308 sound moderator that I then use on all the barrels.
Now.. I wish to sell the 308 and 6.5 x 55 barrels and keep the moderator to use on my .243 barrel (now rifle). If your still with me! Can my moderator just be changed to .243 moderator on my certificate as I intend to buy a different moderator (additional) when I buy a new .308 rifle.? I hope this is not too confusing! Thanks.