Stupid question--which way does the crush washer go on the barrel?

[strojo]

Should it be put on so that the tapered end is toward the barrel or the muzzle device, or does it matter?

[Robb Jensen]

Concave side toward muzzle.

[Iraqgunz]

Moved as this is not a Custom Build topic.

[SpankMonkey]

Tapered end toward the barrel.