LightningOutRecordView.app

<aura:application extends="ltng:outApp" >
    <aura:dependency resource="c:recordViewRepro" />
</aura:application>

recordViewRepro.cmp

<aura:component access="PUBLIC">
	<span>Begin Record View Form</span>
  
      <!-- NOTE: Replace the record Id below with a record Id from your org -->
    	<lightning:recordViewForm recordId="0064400000nL1bT" objectApiName="Opportunity">
            <lightning:outputField fieldName="Name" />
    	</lightning:recordViewForm>
    <span>End Record View Form</span>
</aura:component>

RecordViewRepro.page

<apex:page>
    <apex:includeLightning/>
    
    <div id="ltng">
        
    </div>
    
    <script> 
        $Lightning.use('c:LightningOutRecordView', function() {
          $Lightning.createComponent('c:recordViewRepro',
          {},
          'ltng',
          function(cmp) {
            // do some stuff
          });
        });
    </script>
</apex:page>