This is a simple reskin of the combat knife.
If installing through NMM doesn't work put the texture folder and esp file in the Data folder
C:\Program Files (x86)\Steam\steamapps\common\Fallout 4\Data
That is my directory but it may vary depending where you installed the game
The stats are changed slightly it now does more damage so the pretty thing is much more practical in combat.
Also the value is 300 caps (around the value of a real bayonet fade)
Combat knife(000913CA) base damage: 12 (use that if you don't want the buff)
Bayonet Fade(000000CD) Base damage: 50
Enjoy!!!!
I do realize that others have made the reskin as well this is my take on it (reskined hilt as well)
Obliviously its not perfect but It sure is pretty