diff --git a/OpenRa.Game/GameRules/UnitInfo.cs b/OpenRa.Game/GameRules/UnitInfo.cs
index 420ca1811f..966e687eb4 100755
--- a/OpenRa.Game/GameRules/UnitInfo.cs
+++ b/OpenRa.Game/GameRules/UnitInfo.cs
@@ -50,6 +50,7 @@ namespace OpenRa.Game.GameRules
 		public readonly int[] PrimaryOffset = { 0, 0 };
 		public readonly int[] SecondaryOffset = null;
 		public readonly int Recoil = 0;
+		public readonly int[] ScreenSpaceTurretOffset = { 0, 0 };
 
 		public UnitInfo(string name) { Name = name; }
 
diff --git a/OpenRa.Game/Traits/RenderUnitTurreted.cs b/OpenRa.Game/Traits/RenderUnitTurreted.cs
index 88691f5ad7..a505e22da5 100644
--- a/OpenRa.Game/Traits/RenderUnitTurreted.cs
+++ b/OpenRa.Game/Traits/RenderUnitTurreted.cs
@@ -16,7 +16,11 @@ namespace OpenRa.Game.Traits
 			: base(self)
 		{
 			turretAnim = new Animation(self.unitInfo.Name);
-			turretAnim.PlayFetchIndex("turret", () => self.traits.Get<Turreted>().turretFacing / 8);
+			if (self.traits.Contains<Turreted>())
+				turretAnim.PlayFetchIndex("turret", 
+					() => self.traits.Get<Turreted>().turretFacing / 8);
+			else
+				turretAnim.PlayRepeating("turret");		/* not really a turret; it's a spinner */
 		}
 
 		public override IEnumerable<Pair<Sprite, float2>> Render(Actor self)
diff --git a/OpenRa.Game/Traits/Util.cs b/OpenRa.Game/Traits/Util.cs
index dca26daaa9..f8912aeb93 100755
--- a/OpenRa.Game/Traits/Util.cs
+++ b/OpenRa.Game/Traits/Util.cs
@@ -87,7 +87,9 @@ namespace OpenRa.Game.Traits
 			var bodyFacing = self.traits.Get<Mobile>().facing;
 			var quantizedFacing = bodyFacing - bodyFacing % ru.anim.CurrentSequence.Length;
 
-			return (RotateVectorByFacing(new float2(offset[0], offset[1]), quantizedFacing, .7f) + GetRecoil(self, recoil));
+			return (RotateVectorByFacing(new float2(offset[0], offset[1]), quantizedFacing, .7f) + GetRecoil(self, recoil))
+				+ new float2(self.unitInfo.ScreenSpaceTurretOffset[0],
+					self.unitInfo.ScreenSpaceTurretOffset[1]);
 		}
 
 		public static Pair<Sprite, float2> Centered(Sprite s, float2 location)
diff --git a/units.ini b/units.ini
index d28f4f7e4a..c081ee4b6d 100755
--- a/units.ini
+++ b/units.ini
@@ -33,10 +33,14 @@ Description=Mammoth Tank
 Traits=Mobile, Turreted, AttackTurreted, RenderUnitTurreted
 [MRJ]
 Description=Radar Jammer
-Traits=Mobile, Turreted, RenderUnitTurreted						; temporary. It's not a turret, it's a spinney-thing
+Traits=Mobile, RenderUnitTurreted
+PrimaryOffset=0,4
+ScreenSpaceTurretOffset=0,-6
 [MGG]
 Description=Mobile Gap Generator
-Traits=Mobile, Turreted, RenderUnitTurreted						; temporary. It's not a turret, it's a spinney-thing
+Traits=Mobile, RenderUnitTurreted
+PrimaryOffset=0,6
+ScreenSpaceTurretOffset=0,-3
 [ARTY]
 Description=Artillery
 Traits=Mobile, RenderUnit
@@ -49,6 +53,7 @@ Traits=Mobile, McvDeploy, RenderUnit
 [JEEP]
 Description=Ranger
 Traits=Mobile, Turreted, AttackTurreted, RenderUnitTurreted
+ScreenSpaceTurretOffset=0,-2
 [APC]
 Description=Armored Personnel Carrier
 Traits=Mobile, RenderUnit