Actually, it looks way better to cycle empty than to wait until the chamber is cleared by reloading (especially since the spent casing doesn't reflect the difference!)

src/main/java/com/hbm/handler/guncfg/GunGrenadeFactory.java

@@ -82,7 +82,6 @@ public class GunGrenadeFactory {
 		config.allowsInfinity = true;
 		config.crosshair = Crosshair.L_CIRCUMFLEX;
 		config.firingSound = "hbm:weapon.glShoot";
-		config.firingSoundEmpty = "hbm:weapon.glShootEmpty";
 		config.reloadSound = GunConfiguration.RSOUND_GRENADE_NEW;
 		config.reloadSoundEnd = false;
 		

src/main/resources/assets/hbm/sounds.json

@@ -207,7 +207,6 @@
     "weapon.coilgunShoot": {"category": "player", "sounds": [{"name": "weapon/coilgunShoot", "stream": false}]},
     "weapon.glReload": {"category": "player", "sounds": [{"name": "weapon/glReload", "stream": false}]},
     "weapon.glShoot": {"category": "player", "sounds": [{"name": "weapon/glShoot", "stream": false}]},
-    "weapon.glShootEmpty": {"category": "player", "sounds": [{"name": "weapon/glShootEmpty", "stream": false}]},
     "weapon.44Shoot": {"category": "player", "sounds": [{"name": "weapon/44Shoot", "stream": false}]},
     "weapon.trainImpact": {"category": "player", "sounds": [{"name": "weapon/trainImpact", "stream": false}]},