>>1346not really; you gotta fill the bottle with some kind of medium like they use to do with old timey suppressors
>weld cap shut with steel wool instead of layers of baffles; has a limited life use. thats how it use to be especially the old mac10 suppressors
now, we have many types of baffle technology and suppressors last a lifetime if maintained and the carbon build up can be cleaned out or in alot of rifle cans it just blows it out as it shoots
wipe suppressors are about the only thing you need to regularly replace