OK, you didn't know what I was saying because you kept referring to the Thompson case regarding turning a rife into a pistol. I wasn't talking about that at all. I was saying that the BATFE regards a buffer tube that can accept a stock as a stock.
I haven't read your link yet, but I'm prepared to admit I'm wrong on that. But your initial objections had absolutly nothing to do with what I was talking about; it wasn't until you mentioned the letter that you actually addressed what I was saying.
0331: "Accuracy by volume."