Good stuff. Always love when weapons feel like they could be default.
If I might add some critiques, though...
The Recoilless Rifle feels a bit too OP. I get that that's kind of the point. But the fire rate seems a bit too fast. No weapon would stand a chance against it (except itself of course, lol). Either way, quite fun to use.
Both the Dual Guns and the Gun with Rocket Launcher point both weapons toward the ground when a gun is fired in either hand. This of course changes the position of the muzzle on either weapon, causing bullets and rockets to fire from the player's feet. This makes firing rather awkward for anyone used to the standard weapons.
The Spear with Bow handles great. Personally, though, I'd prefer they be the default colors. Just my preference, though.
Overall, great add-ons. Definitely going to try to find an excuse to use these.
Also, why no post these on Blockland Glass?