diff --git a/components/nif/niffile.cpp b/components/nif/niffile.cpp
index 6f588a7cdb..efdd51a909 100644
--- a/components/nif/niffile.cpp
+++ b/components/nif/niffile.cpp
@@ -283,6 +283,7 @@ namespace Nif
             { "bhkCollisionObject", &construct<bhkCollisionObject, RC_bhkCollisionObject> },
             { "bhkPCollisionObject", &construct<bhkCollisionObject, RC_bhkCollisionObject> },
             { "bhkSPCollisionObject", &construct<bhkCollisionObject, RC_bhkCollisionObject> },
+            { "bhkNPCollisionObject", &construct<bhkNPCollisionObject, RC_bhkCollisionObject> },
             { "bhkBlendCollisionObject", &construct<bhkBlendCollisionObject, RC_bhkBlendCollisionObject> },
 
             // Constraint records, Bethesda
@@ -313,6 +314,10 @@ namespace Nif
             { "bhkSphereShape", &construct<bhkSphereShape, RC_bhkSphereShape> },
             { "bhkTransformShape", &construct<bhkConvexTransformShape, RC_bhkConvexTransformShape> },
 
+            // Physics system records, Bethesda
+            { "bhkPhysicsSystem", &construct<bhkPhysicsSystem, RC_bhkPhysicsSystem> },
+            { "bhkRagdollSystem", &construct<bhkRagdollSystem, RC_bhkRagdollSystem> },
+
             // PROPERTIES
 
             // 4.0.0.2
diff --git a/components/nif/physics.cpp b/components/nif/physics.cpp
index 120e56e2dd..a359f86066 100644
--- a/components/nif/physics.cpp
+++ b/components/nif/physics.cpp
@@ -342,6 +342,22 @@ namespace Nif
         mBody.read(nif);
     }
 
+    void bhkNPCollisionObject::read(NIFStream* nif)
+    {
+        NiCollisionObject::read(nif);
+
+        nif->read(mFlags);
+        mData.read(nif);
+        nif->read(mBodyID);
+    }
+
+    void bhkNPCollisionObject::post(Reader& nif)
+    {
+        NiCollisionObject::post(nif);
+
+        mData.post(nif);
+    }
+
     void bhkBlendCollisionObject::read(NIFStream* nif)
     {
         bhkCollisionObject::read(nif);
@@ -353,6 +369,16 @@ namespace Nif
             nif->skip(8); // Unknown
     }
 
+    void bhkPhysicsSystem::read(NIFStream* nif)
+    {
+        nif->readVector(mData, nif->get<uint32_t>());
+    }
+
+    void bhkRagdollSystem::read(NIFStream* nif)
+    {
+        nif->readVector(mData, nif->get<uint32_t>());
+    }
+
     void bhkWorldObject::read(NIFStream* nif)
     {
         mShape.read(nif);
diff --git a/components/nif/physics.hpp b/components/nif/physics.hpp
index d4addeaad6..91d55c1f80 100644
--- a/components/nif/physics.hpp
+++ b/components/nif/physics.hpp
@@ -370,6 +370,11 @@ namespace Nif
     {
     };
 
+    // Abstract physics system
+    struct bhkSystem : public Record
+    {
+    };
+
     // Generic collision object
     struct NiCollisionObject : public Record
     {
@@ -394,6 +399,16 @@ namespace Nif
         }
     };
 
+    struct bhkNPCollisionObject : NiCollisionObject
+    {
+        uint16_t mFlags;
+        bhkSystemPtr mData;
+        uint32_t mBodyID;
+
+        void read(NIFStream* nif) override;
+        void post(Reader& nif) override;
+    };
+
     struct bhkBlendCollisionObject : bhkCollisionObject
     {
         float mHeirGain;
@@ -402,6 +417,20 @@ namespace Nif
         void read(NIFStream* nif) override;
     };
 
+    struct bhkPhysicsSystem : public bhkSystem
+    {
+        std::vector<uint8_t> mData;
+
+        void read(NIFStream* nif) override;
+    };
+
+    struct bhkRagdollSystem : public bhkSystem
+    {
+        std::vector<uint8_t> mData;
+
+        void read(NIFStream* nif) override;
+    };
+
     // Abstract Havok shape info record
     struct bhkWorldObject : public bhkSerializable
     {
diff --git a/components/nif/record.hpp b/components/nif/record.hpp
index 1699820cdc..2c641b2aff 100644
--- a/components/nif/record.hpp
+++ b/components/nif/record.hpp
@@ -54,7 +54,9 @@ namespace Nif
         RC_bhkMoppBvTreeShape,
         RC_bhkNiTriStripsShape,
         RC_bhkPackedNiTriStripsShape,
+        RC_bhkPhysicsSystem,
         RC_bhkRagdollConstraint,
+        RC_bhkRagdollSystem,
         RC_bhkRigidBody,
         RC_bhkRigidBodyT,
         RC_bhkSimpleShapePhantom,
diff --git a/components/nif/recordptr.hpp b/components/nif/recordptr.hpp
index 54ebe0e9a2..8598a88f0e 100644
--- a/components/nif/recordptr.hpp
+++ b/components/nif/recordptr.hpp
@@ -136,6 +136,7 @@ namespace Nif
     struct BSShaderProperty;
     struct NiAlphaProperty;
     struct NiCollisionObject;
+    struct bhkSystem;
     struct bhkWorldObject;
     struct bhkShape;
     struct bhkSerializable;
@@ -176,6 +177,7 @@ namespace Nif
     using BSShaderPropertyPtr = RecordPtrT<BSShaderProperty>;
     using NiAlphaPropertyPtr = RecordPtrT<NiAlphaProperty>;
     using NiCollisionObjectPtr = RecordPtrT<NiCollisionObject>;
+    using bhkSystemPtr = RecordPtrT<bhkSystem>;
     using bhkWorldObjectPtr = RecordPtrT<bhkWorldObject>;
     using bhkShapePtr = RecordPtrT<bhkShape>;
     using bhkEntityPtr = RecordPtrT<bhkEntity>;