Yes

LeftHandedPlayers/Commands/LeftHanded.cs

@@ -10,6 +10,7 @@ namespace LeftHandedPlayers.Commands
     using System;
     using CommandSystem;
     using Exiled.API.Features;
+    using UnityEngine;
 
     /// <inheritdoc />
     public class LeftHanded : ICommand
@@ -40,15 +41,15 @@ public bool Execute(ArraySegment<string> arguments, ICommandSender sender, out s
                 return false;
             }
 
-            if (player.Scale.x > 0)
+            if (player.Scale.x > 0f)
             {
-                player.Scale.Scale(new UnityEngine.Vector3(-1, 1, 1));
+                player.Scale = Vector3.Scale(player.Scale, LeftHandedCollection.ScaleVector);
                 plugin.LeftHandedCollection.Add(player);
                 response = "You are now left handed";
                 return true;
             }
 
-            player.Scale.Scale(new UnityEngine.Vector3(-1, 1, 1));
+            player.Scale = Vector3.Scale(player.Scale, LeftHandedCollection.ScaleVector);
             plugin.LeftHandedCollection.Remove(player);
             response = "You are no longer left handed";
             return true;

LeftHandedPlayers/EventHandlers/PlayerEvents.cs

@@ -7,10 +7,7 @@
 
 namespace LeftHandedPlayers.EventHandlers
 {
-    using Exiled.API.Features.Items;
     using Exiled.Events.EventArgs;
-    using InventorySystem.Items.Firearms.Attachments;
-    using UnityEngine;
 
     /// <summary>
     /// Handles events derived from <see cref="Exiled.Events.Handlers.Player"/>.
@@ -25,42 +22,11 @@ public class PlayerEvents
         /// <param name="plugin">An instance of the <see cref="Plugin"/> class.</param>
         public PlayerEvents(Plugin plugin) => this.plugin = plugin;
 
-        /// <inheritdoc cref="Exiled.Events.Handlers.Player.OnChangingItem(ChangingItemEventArgs)"/>
-        public void OnChangingItem(ChangingItemEventArgs ev)
-        {
-            if (ev.NewItem.Type != ItemType.GunE11SR)
-                return;
-
-            if (ev.NewItem.Scale[0] < 0)
-            {
-                if (plugin.LeftHandedCollection.Contains(ev.Player))
-                {
-                    ev.NewItem.Scale.Scale(new Vector3(-1, 1, 1));
-                }
-
-                return;
-            }
-
-            if (!plugin.LeftHandedCollection.Contains(ev.Player))
-                return;
-
-            Firearm firearm = (Firearm)ev.NewItem;
-
-            foreach (FirearmAttachment st in firearm.Attachments)
-            {
-                if ((st.Name == AttachmentNameTranslation.NightVisionSight || st.Name == AttachmentNameTranslation.ScopeSight) && st.IsEnabled)
-                {
-                    firearm.Scale.Scale(new Vector3(-1, 1, 1));
-                    return;
-                }
-            }
-        }
-
         /// <inheritdoc cref="Exiled.Events.Handlers.Player.OnVerified(VerifiedEventArgs)"/>
         public void OnVerified(VerifiedEventArgs ev)
         {
             if (plugin.LeftHandedCollection.Contains(ev.Player))
-                ev.Player.Scale = new Vector3(-1, 1, 1);
+                ev.Player.Scale = LeftHandedCollection.ScaleVector;
         }
     }
 }

LeftHandedPlayers/LeftHandedCollection.cs

@@ -11,6 +11,7 @@ namespace LeftHandedPlayers
     using System.IO;
     using Exiled.API.Features;
     using Exiled.Loader;
+    using UnityEngine;
 
     /// <summary>
     /// Handles an underlying <see cref="HashSet{T}"/> of user ids that should be considered to be left handed.
@@ -26,6 +27,11 @@ public class LeftHandedCollection
         /// <param name="plugin">An instance of the <see cref="Plugin"/> class.</param>
         public LeftHandedCollection(Plugin plugin) => this.plugin = plugin;
 
+        /// <summary>
+        /// Gets the vector that objects should be scaled by to be flipped.
+        /// </summary>
+        public static Vector3 ScaleVector { get; } = new Vector3(-1, 1, 1);
+
         /// <summary>
         /// Adds a player to the collection.
         /// </summary>

LeftHandedPlayers/Plugin.cs

@@ -45,7 +45,6 @@ public override void OnEnabled()
             ServerHandlers.RoundEnded += serverEvents.OnRoundEnded;
             ServerHandlers.WaitingForPlayers += serverEvents.OnWaitingForPlayers;
             PlayerHandlers.Verified += playerEvents.OnVerified;
-            PlayerHandlers.ChangingItem += playerEvents.OnChangingItem;
             base.OnEnabled();
         }
 
@@ -55,7 +54,6 @@ public override void OnDisabled()
             ServerHandlers.RoundEnded -= serverEvents.OnRoundEnded;
             ServerHandlers.WaitingForPlayers -= serverEvents.OnWaitingForPlayers;
             PlayerHandlers.Verified -= playerEvents.OnVerified;
-            PlayerHandlers.ChangingItem -= playerEvents.OnChangingItem;
             serverEvents = null;
             playerEvents = null;
             LeftHandedCollection = null;