Does the "hand guard" on an M1 Carbine constitute a "barrel shroud" as defined in HR 1808, thus making the M1 Carbine an assault weapon as defined in the bill? The bill specifically defines an SKS rifle with detachable magazine as an assault weapon implying that the original version with the non-detachable magazine is not an assault weapon. The SKS has a similar forward hand guard as the M1 Carbine, so if the original SKS isn't an assault weapon under the bill, then the M1 Carbine isn't either. (Please, I'm not asking for opinions about the bill in general, I'm just confused about the concept of "barrel shroud" as a defining feature of assault weapons.)