[copeab]

(I'll toss this in, as it's something I've researched for my Weird WWII campaign)

The M-1903 Springfield with M-1 rifle grenade adapter was a superior platform to the M-1 Garand with the M-7 rifle grenade adapter. On the Garand, firing rifle grenades required the weapon be unloaded and the gas port turned off. Additionally, live ammo could not be fired with the M-7 adapter on the gun. OTOH, the Springfield could fire regular ammo with the M-1 adapter on the rifle and, as it had a magazine cutoff, it could keep it's internal magazine loaded with live ammo while firing rifle grenade blanks while operating as a single shot rifle. The US used the M-1903 for its grenadiers well into the war due to the problems with the M-1/M-7 combo.