diff --git a/openstackclient/compute/v2/security_group.py b/openstackclient/compute/v2/security_group.py
index f378af14cb..042e5caf3d 100644
--- a/openstackclient/compute/v2/security_group.py
+++ b/openstackclient/compute/v2/security_group.py
@@ -56,23 +56,6 @@ def _xform_security_group_rule(sgroup):
     return info
 
 
-def _xform_and_trim_security_group_rule(sgroup):
-    info = _xform_security_group_rule(sgroup)
-    # Trim parent security group ID since caller has this information.
-    info.pop('parent_group_id', None)
-    # Trim keys with empty string values.
-    keys_to_trim = [
-        'ip_protocol',
-        'ip_range',
-        'port_range',
-        'remote_security_group',
-    ]
-    for key in keys_to_trim:
-        if key in info and not info[key]:
-            info.pop(key)
-    return info
-
-
 class CreateSecurityGroup(command.ShowOne):
     """Create a new security group"""
 
@@ -215,40 +198,3 @@ class ListSecurityGroupRule(command.Lister):
                 (utils.get_item_properties(
                     s, columns,
                 ) for s in rules))
-
-
-class ShowSecurityGroup(command.ShowOne):
-    """Display security group details"""
-
-    def get_parser(self, prog_name):
-        parser = super(ShowSecurityGroup, self).get_parser(prog_name)
-        parser.add_argument(
-            'group',
-            metavar='<group>',
-            help='Security group to display (name or ID)',
-        )
-        return parser
-
-    def take_action(self, parsed_args):
-
-        compute_client = self.app.client_manager.compute
-        info = {}
-        info.update(utils.find_resource(
-            compute_client.security_groups,
-            parsed_args.group,
-        )._info)
-        rules = []
-        for r in info['rules']:
-            formatted_rule = _xform_and_trim_security_group_rule(r)
-            rules.append(utils.format_dict(formatted_rule))
-
-        # Format rules into a list of strings
-        info.update(
-            {'rules': utils.format_list(rules, separator='\n')}
-        )
-        # Map 'tenant_id' column to 'project_id'
-        info.update(
-            {'project_id': info.pop('tenant_id')}
-        )
-
-        return zip(*sorted(six.iteritems(info)))
diff --git a/openstackclient/network/utils.py b/openstackclient/network/utils.py
new file mode 100644
index 0000000000..287f027163
--- /dev/null
+++ b/openstackclient/network/utils.py
@@ -0,0 +1,41 @@
+#   Licensed under the Apache License, Version 2.0 (the "License"); you may
+#   not use this file except in compliance with the License. You may obtain
+#   a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#   WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#   License for the specific language governing permissions and limitations
+#   under the License.
+#
+
+
+# Transform compute security group rule for display.
+def transform_compute_security_group_rule(sg_rule):
+    info = {}
+    info.update(sg_rule)
+    from_port = info.pop('from_port')
+    to_port = info.pop('to_port')
+    if isinstance(from_port, int) and isinstance(to_port, int):
+        port_range = {'port_range': "%u:%u" % (from_port, to_port)}
+    elif from_port is None and to_port is None:
+        port_range = {'port_range': ""}
+    else:
+        port_range = {'port_range': "%s:%s" % (from_port, to_port)}
+    info.update(port_range)
+    if 'cidr' in info['ip_range']:
+        info['ip_range'] = info['ip_range']['cidr']
+    else:
+        info['ip_range'] = ''
+    if info['ip_protocol'] is None:
+        info['ip_protocol'] = ''
+    elif info['ip_protocol'].lower() == 'icmp':
+        info['port_range'] = ''
+    group = info.pop('group')
+    if 'name' in group:
+        info['remote_security_group'] = group['name']
+    else:
+        info['remote_security_group'] = ''
+    return info
diff --git a/openstackclient/network/v2/security_group.py b/openstackclient/network/v2/security_group.py
index 62699ffd3d..64717945f3 100644
--- a/openstackclient/network/v2/security_group.py
+++ b/openstackclient/network/v2/security_group.py
@@ -14,9 +14,81 @@
 """Security Group action implementations"""
 
 import argparse
+import six
 
 from openstackclient.common import utils
 from openstackclient.network import common
+from openstackclient.network import utils as network_utils
+
+
+def _format_network_security_group_rules(sg_rules):
+    # For readability and to align with formatting compute security group
+    # rules, trim keys with caller known (e.g. security group and tenant ID)
+    # or empty values.
+    for sg_rule in sg_rules:
+        empty_keys = [k for k, v in six.iteritems(sg_rule) if not v]
+        for key in empty_keys:
+            sg_rule.pop(key)
+        sg_rule.pop('security_group_id', None)
+        sg_rule.pop('tenant_id', None)
+    return utils.format_list_of_dicts(sg_rules)
+
+
+def _format_compute_security_group_rule(sg_rule):
+    info = network_utils.transform_compute_security_group_rule(sg_rule)
+    # Trim parent security group ID since caller has this information.
+    info.pop('parent_group_id', None)
+    # Trim keys with empty string values.
+    keys_to_trim = [
+        'ip_protocol',
+        'ip_range',
+        'port_range',
+        'remote_security_group',
+    ]
+    for key in keys_to_trim:
+        if key in info and not info[key]:
+            info.pop(key)
+    return utils.format_dict(info)
+
+
+def _format_compute_security_group_rules(sg_rules):
+    rules = []
+    for sg_rule in sg_rules:
+        rules.append(_format_compute_security_group_rule(sg_rule))
+    return utils.format_list(rules, separator='\n')
+
+
+_formatters_network = {
+    'security_group_rules': _format_network_security_group_rules,
+}
+
+
+_formatters_compute = {
+    'rules': _format_compute_security_group_rules,
+}
+
+
+def _get_columns(item):
+    # Build the display columns and a list of the property columns
+    # that need to be mapped (display column name, property name).
+    columns = list(item.keys())
+    property_column_mappings = []
+    if 'security_group_rules' in columns:
+        columns.append('rules')
+        columns.remove('security_group_rules')
+        property_column_mappings.append(('rules', 'security_group_rules'))
+    if 'tenant_id' in columns:
+        columns.append('project_id')
+        columns.remove('tenant_id')
+        property_column_mappings.append(('project_id', 'tenant_id'))
+    display_columns = sorted(columns)
+
+    # Build the property columns and apply any column mappings.
+    property_columns = sorted(columns)
+    for property_column_mapping in property_column_mappings:
+        property_index = property_columns.index(property_column_mapping[0])
+        property_columns[property_index] = property_column_mapping[1]
+    return tuple(display_columns), property_columns
 
 
 class DeleteSecurityGroup(common.NetworkAndComputeCommand):
@@ -143,3 +215,39 @@ class SetSecurityGroup(common.NetworkAndComputeCommand):
             data.name,
             data.description,
         )
+
+
+class ShowSecurityGroup(common.NetworkAndComputeShowOne):
+    """Display security group details"""
+
+    def update_parser_common(self, parser):
+        parser.add_argument(
+            'group',
+            metavar='<group>',
+            help='Security group to display (name or ID)',
+        )
+        return parser
+
+    def take_action_network(self, client, parsed_args):
+        obj = client.find_security_group(parsed_args.group,
+                                         ignore_missing=False)
+        display_columns, property_columns = _get_columns(obj)
+        data = utils.get_item_properties(
+            obj,
+            property_columns,
+            formatters=_formatters_network
+        )
+        return (display_columns, data)
+
+    def take_action_compute(self, client, parsed_args):
+        obj = utils.find_resource(
+            client.security_groups,
+            parsed_args.group,
+        )
+        display_columns, property_columns = _get_columns(obj._info)
+        data = utils.get_dict_properties(
+            obj._info,
+            property_columns,
+            formatters=_formatters_compute
+        )
+        return (display_columns, data)
diff --git a/openstackclient/network/v2/security_group_rule.py b/openstackclient/network/v2/security_group_rule.py
index a61e3233df..92f28cce77 100644
--- a/openstackclient/network/v2/security_group_rule.py
+++ b/openstackclient/network/v2/security_group_rule.py
@@ -18,38 +18,11 @@ import six
 from openstackclient.common import exceptions
 from openstackclient.common import utils
 from openstackclient.network import common
-
-
-def _xform_security_group_rule(sgroup):
-    info = {}
-    info.update(sgroup)
-    from_port = info.pop('from_port')
-    to_port = info.pop('to_port')
-    if isinstance(from_port, int) and isinstance(to_port, int):
-        port_range = {'port_range': "%u:%u" % (from_port, to_port)}
-    elif from_port is None and to_port is None:
-        port_range = {'port_range': ""}
-    else:
-        port_range = {'port_range': "%s:%s" % (from_port, to_port)}
-    info.update(port_range)
-    if 'cidr' in info['ip_range']:
-        info['ip_range'] = info['ip_range']['cidr']
-    else:
-        info['ip_range'] = ''
-    if info['ip_protocol'] is None:
-        info['ip_protocol'] = ''
-    elif info['ip_protocol'].lower() == 'icmp':
-        info['port_range'] = ''
-    group = info.pop('group')
-    if 'name' in group:
-        info['remote_security_group'] = group['name']
-    else:
-        info['remote_security_group'] = ''
-    return info
+from openstackclient.network import utils as network_utils
 
 
 def _format_security_group_rule_show(obj):
-    data = _xform_security_group_rule(obj)
+    data = network_utils.transform_compute_security_group_rule(obj)
     return zip(*sorted(six.iteritems(data)))
 
 
diff --git a/openstackclient/tests/compute/v2/fakes.py b/openstackclient/tests/compute/v2/fakes.py
index 11d9ff1b46..26d3a28309 100644
--- a/openstackclient/tests/compute/v2/fakes.py
+++ b/openstackclient/tests/compute/v2/fakes.py
@@ -333,7 +333,9 @@ class FakeSecurityGroup(object):
         security_group_attrs.update(attrs)
 
         # Set default methods.
-        security_group_methods = {}
+        security_group_methods = {
+            'keys': ['id', 'name', 'description', 'tenant_id', 'rules'],
+        }
 
         # Overwrite default methods.
         security_group_methods.update(methods)
@@ -369,7 +371,7 @@ class FakeSecurityGroupRule(object):
     """Fake one or more security group rules."""
 
     @staticmethod
-    def create_one_security_group_rule(attrs={}, methods={}):
+    def create_one_security_group_rule(attrs=None, methods=None):
         """Create a fake security group rule.
 
         :param Dictionary attrs:
@@ -379,6 +381,11 @@ class FakeSecurityGroupRule(object):
         :return:
             A FakeResource object, with id, etc.
         """
+        if attrs is None:
+            attrs = {}
+        if methods is None:
+            methods = {}
+
         # Set default attributes.
         security_group_rule_attrs = {
             'from_port': -1,
@@ -406,7 +413,7 @@ class FakeSecurityGroupRule(object):
         return security_group_rule
 
     @staticmethod
-    def create_security_group_rules(attrs={}, methods={}, count=2):
+    def create_security_group_rules(attrs=None, methods=None, count=2):
         """Create multiple fake security group rules.
 
         :param Dictionary attrs:
diff --git a/openstackclient/tests/network/v2/fakes.py b/openstackclient/tests/network/v2/fakes.py
index 9e6bf97f65..6cb7e997da 100644
--- a/openstackclient/tests/network/v2/fakes.py
+++ b/openstackclient/tests/network/v2/fakes.py
@@ -419,7 +419,7 @@ class FakeSecurityGroup(object):
     """Fake one or more security groups."""
 
     @staticmethod
-    def create_one_security_group(attrs={}, methods={}):
+    def create_one_security_group(attrs=None, methods=None):
         """Create a fake security group.
 
         :param Dictionary attrs:
@@ -429,6 +429,11 @@ class FakeSecurityGroup(object):
         :return:
             A FakeResource object, with id, name, etc.
         """
+        if attrs is None:
+            attrs = {}
+        if methods is None:
+            methods = {}
+
         # Set default attributes.
         security_group_attrs = {
             'id': 'security-group-id-' + uuid.uuid4().hex,
@@ -442,7 +447,10 @@ class FakeSecurityGroup(object):
         security_group_attrs.update(attrs)
 
         # Set default methods.
-        security_group_methods = {}
+        security_group_methods = {
+            'keys': ['id', 'name', 'description', 'tenant_id',
+                     'security_group_rules'],
+        }
 
         # Overwrite default methods.
         security_group_methods.update(methods)
@@ -451,10 +459,14 @@ class FakeSecurityGroup(object):
             info=copy.deepcopy(security_group_attrs),
             methods=copy.deepcopy(security_group_methods),
             loaded=True)
+
+        # Set attributes with special mapping in OpenStack SDK.
+        security_group.project_id = security_group_attrs['tenant_id']
+
         return security_group
 
     @staticmethod
-    def create_security_groups(attrs={}, methods={}, count=2):
+    def create_security_groups(attrs=None, methods=None, count=2):
         """Create multiple fake security groups.
 
         :param Dictionary attrs:
@@ -478,7 +490,7 @@ class FakeSecurityGroupRule(object):
     """Fake one or more security group rules."""
 
     @staticmethod
-    def create_one_security_group_rule(attrs={}, methods={}):
+    def create_one_security_group_rule(attrs=None, methods=None):
         """Create a fake security group rule.
 
         :param Dictionary attrs:
@@ -488,6 +500,11 @@ class FakeSecurityGroupRule(object):
         :return:
             A FakeResource object, with id, etc.
         """
+        if attrs is None:
+            attrs = {}
+        if methods is None:
+            methods = {}
+
         # Set default attributes.
         security_group_rule_attrs = {
             'direction': 'ingress',
@@ -520,13 +537,13 @@ class FakeSecurityGroupRule(object):
             methods=copy.deepcopy(security_group_rule_methods),
             loaded=True)
 
-        # Set attributes with special mappings.
+        # Set attributes with special mapping in OpenStack SDK.
         security_group_rule.project_id = security_group_rule_attrs['tenant_id']
 
         return security_group_rule
 
     @staticmethod
-    def create_security_group_rules(attrs={}, methods={}, count=2):
+    def create_security_group_rules(attrs=None, methods=None, count=2):
         """Create multiple fake security group rules.
 
         :param Dictionary attrs:
diff --git a/openstackclient/tests/network/v2/test_security_group.py b/openstackclient/tests/network/v2/test_security_group.py
index b8114cbcf0..a66b7b0061 100644
--- a/openstackclient/tests/network/v2/test_security_group.py
+++ b/openstackclient/tests/network/v2/test_security_group.py
@@ -363,3 +363,122 @@ class TestSetSecurityGroupCompute(TestSecurityGroupCompute):
             new_description
         )
         self.assertIsNone(result)
+
+
+class TestShowSecurityGroupNetwork(TestSecurityGroupNetwork):
+
+    # The security group rule to be shown with the group.
+    _security_group_rule = \
+        network_fakes.FakeSecurityGroupRule.create_one_security_group_rule()
+
+    # The security group to be shown.
+    _security_group = \
+        network_fakes.FakeSecurityGroup.create_one_security_group(
+            attrs={'security_group_rules': [_security_group_rule._info]}
+        )
+
+    columns = (
+        'description',
+        'id',
+        'name',
+        'project_id',
+        'rules',
+    )
+
+    data = (
+        _security_group.description,
+        _security_group.id,
+        _security_group.name,
+        _security_group.project_id,
+        security_group._format_network_security_group_rules(
+            [_security_group_rule._info]),
+    )
+
+    def setUp(self):
+        super(TestShowSecurityGroupNetwork, self).setUp()
+
+        self.network.find_security_group = mock.Mock(
+            return_value=self._security_group)
+
+        # Get the command object to test
+        self.cmd = security_group.ShowSecurityGroup(self.app, self.namespace)
+
+    def test_show_no_options(self):
+        self.assertRaises(tests_utils.ParserException,
+                          self.check_parser, self.cmd, [], [])
+
+    def test_show_all_options(self):
+        arglist = [
+            self._security_group.id,
+        ]
+        verifylist = [
+            ('group', self._security_group.id),
+        ]
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        columns, data = self.cmd.take_action(parsed_args)
+
+        self.network.find_security_group.assert_called_once_with(
+            self._security_group.id, ignore_missing=False)
+        self.assertEqual(self.columns, columns)
+        self.assertEqual(self.data, data)
+
+
+class TestShowSecurityGroupCompute(TestSecurityGroupCompute):
+
+    # The security group rule to be shown with the group.
+    _security_group_rule = \
+        compute_fakes.FakeSecurityGroupRule.create_one_security_group_rule()
+
+    # The security group to be shown.
+    _security_group = \
+        compute_fakes.FakeSecurityGroup.create_one_security_group(
+            attrs={'rules': [_security_group_rule._info]}
+        )
+
+    columns = (
+        'description',
+        'id',
+        'name',
+        'project_id',
+        'rules',
+    )
+
+    data = (
+        _security_group.description,
+        _security_group.id,
+        _security_group.name,
+        _security_group.tenant_id,
+        security_group._format_compute_security_group_rules(
+            [_security_group_rule._info]),
+    )
+
+    def setUp(self):
+        super(TestShowSecurityGroupCompute, self).setUp()
+
+        self.app.client_manager.network_endpoint_enabled = False
+
+        self.compute.security_groups.get.return_value = self._security_group
+
+        # Get the command object to test
+        self.cmd = security_group.ShowSecurityGroup(self.app, None)
+
+    def test_show_no_options(self):
+        self.assertRaises(tests_utils.ParserException,
+                          self.check_parser, self.cmd, [], [])
+
+    def test_show_all_options(self):
+        arglist = [
+            self._security_group.id,
+        ]
+        verifylist = [
+            ('group', self._security_group.id),
+        ]
+        parsed_args = self.check_parser(self.cmd, arglist, verifylist)
+
+        columns, data = self.cmd.take_action(parsed_args)
+
+        self.compute.security_groups.get.assert_called_once_with(
+            self._security_group.id)
+        self.assertEqual(self.columns, columns)
+        self.assertEqual(self.data, data)
diff --git a/releasenotes/notes/bug-1519511-68ca30ad5519d3d8.yaml b/releasenotes/notes/bug-1519511-68ca30ad5519d3d8.yaml
new file mode 100644
index 0000000000..d69244e6c2
--- /dev/null
+++ b/releasenotes/notes/bug-1519511-68ca30ad5519d3d8.yaml
@@ -0,0 +1,6 @@
+---
+features:
+  - The ``security group show`` command now uses Network v2 when
+    enabled which results in a more detailed output for network
+    security group rules.
+    [Bug `1519511 <https://bugs.launchpad.net/bugs/1519511>`_]
diff --git a/setup.cfg b/setup.cfg
index 981d2fef49..4809cd2283 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -100,7 +100,6 @@ openstack.compute.v2 =
     keypair_show = openstackclient.compute.v2.keypair:ShowKeypair
 
     security_group_create = openstackclient.compute.v2.security_group:CreateSecurityGroup
-    security_group_show = openstackclient.compute.v2.security_group:ShowSecurityGroup
     security_group_rule_create = openstackclient.compute.v2.security_group:CreateSecurityGroupRule
     security_group_rule_list = openstackclient.compute.v2.security_group:ListSecurityGroupRule
 
@@ -348,6 +347,7 @@ openstack.network.v2 =
     security_group_delete = openstackclient.network.v2.security_group:DeleteSecurityGroup
     security_group_list = openstackclient.network.v2.security_group:ListSecurityGroup
     security_group_set = openstackclient.network.v2.security_group:SetSecurityGroup
+    security_group_show = openstackclient.network.v2.security_group:ShowSecurityGroup
     security_group_rule_delete = openstackclient.network.v2.security_group_rule:DeleteSecurityGroupRule
     security_group_rule_show = openstackclient.network.v2.security_group_rule:ShowSecurityGroupRule