Going back a bit further in the story of the M1903 rifle we enter the period before the decision to adopt a universal short rifle pattern for infantry and cavalry. This is the 30"-barreled infantry version with the integral spike or "rod" bayonet in the forearm under the barrel. The cavalry version had a 22" barrel and a half-length forearm with no provision for a bayonet at all.

>>63815540
>Isn't the whole point to be handing these out to scouts and marksmen who shouldn't be needing bayonets in the first place?
Yeah. The idea was that only a couple men in each company would be issued a silenced rifle and they would act as specialists. But some people just can't break out of the mental image of how they view the infantry should operate. Pershing himself ordered that the silencers be sent back to the USA.

>>63815709
I've read a few WW1 memoirs by British, Canadian, and American scouts and they rarely used bayonets during trench raids. Rifles/automatic rifles were carried by the security elements meant to provide covering fire when the raiders withdrew but otherwise were too unwieldy in the confines of a trench. It's usually handguns and/or clubs/knives and ALWAYS grenades grenades grenades. There were scouts that would only carry grenades on their patrols because if they did their job right they went undetected and the less they carried meant the easier it was to move across the battlefield, and if they were detected and weren't immediately killed then tossing a few grenades might discourage the enemy long enough to escape. Grenade spam is not a meme and most WW1 media does a terrible job representing their pervasive use on the battlefield.