diff --git a/src/ObservableCollections.Unity/Assets/Plugins/ObservableCollections/Runtime/ObservableFixedSizeRingBuffer.cs b/src/ObservableCollections.Unity/Assets/Plugins/ObservableCollections/Runtime/ObservableFixedSizeRingBuffer.cs
index 02ef0b2..ea0003c 100644
--- a/src/ObservableCollections.Unity/Assets/Plugins/ObservableCollections/Runtime/ObservableFixedSizeRingBuffer.cs
+++ b/src/ObservableCollections.Unity/Assets/Plugins/ObservableCollections/Runtime/ObservableFixedSizeRingBuffer.cs
@@ -278,6 +278,30 @@ namespace ObservableCollections
             }
         }
 
+        public T[] ToArray()
+        {
+            lock (SyncRoot)
+            {
+                return buffer.ToArray();
+            }
+        }
+
+        public int BinarySearch(T item)
+        {
+            lock (SyncRoot)
+            {
+                return buffer.BinarySearch(item);
+            }
+        }
+
+        public int BinarySearch(T item, IComparer<T> comparer)
+        {
+            lock (SyncRoot)
+            {
+                return buffer.BinarySearch(item, comparer);
+            }
+        }
+
         public IEnumerator<T> GetEnumerator()
         {
             lock (SyncRoot)
diff --git a/src/ObservableCollections/ObservableFixedSizeRingBuffer.cs b/src/ObservableCollections/ObservableFixedSizeRingBuffer.cs
index 80780d9..fabf45e 100644
--- a/src/ObservableCollections/ObservableFixedSizeRingBuffer.cs
+++ b/src/ObservableCollections/ObservableFixedSizeRingBuffer.cs
@@ -278,6 +278,30 @@ namespace ObservableCollections
             }
         }
 
+        public T[] ToArray()
+        {
+            lock (SyncRoot)
+            {
+                return buffer.ToArray();
+            }
+        }
+
+        public int BinarySearch(T item)
+        {
+            lock (SyncRoot)
+            {
+                return buffer.BinarySearch(item);
+            }
+        }
+
+        public int BinarySearch(T item, IComparer<T> comparer)
+        {
+            lock (SyncRoot)
+            {
+                return buffer.BinarySearch(item, comparer);
+            }
+        }
+
         public IEnumerator<T> GetEnumerator()
         {
             lock (SyncRoot)