Looks weird on his chest. Looks fine on his hip

this could also work as a Stock Kukri reskin, good job.

Please don't make the same mistake as that Soldier knife where it uses the soldier_coat equip region, this should not be sniper_vest. Either way, this looks really menacing, good job.

Explain to me: WHY MAKE A HOLSTER FOR A WEAPON THAT IS NOT IN THE GAME AND THEREBY TEASE THE PLAYERS?!?! Do you even realize that this looks like a mockery of the lack of new weapons in the game?! "Here's a dummy in the form of a cannon that you can only carry in your pocket and will never be able to USE IT FOR ITS INTENDED PURPOSE."

Surprised this isn't an amalgamation of a coat and this, much appreciated because I dearly miss subtle additions onto the player model.

Nice and simple. Since you're fine with Gmod hexes I hope to see it in Gmod real soon, wish you could post it on Loadout.tf but Gmod is fine enough.

"You call that a knife? THIS is a knife."

how to get a weapon officially added to tf2:
step 1. make it a cosmetic item