diff --git a/megamek/src/megamek/common/SpaceStation.java b/megamek/src/megamek/common/SpaceStation.java
index a6885da71bc..14da6ecd2cf 100644
--- a/megamek/src/megamek/common/SpaceStation.java
+++ b/megamek/src/megamek/common/SpaceStation.java
@@ -22,9 +22,12 @@
  */
 public class SpaceStation extends Jumpship {
     private static final long serialVersionUID = -3160156173650960985L;
-    
+
+    /** A station over this weight in may built as a modular station. */
+    public static final double MODULAR_MININUM_WEIGHT = 100000.0;
+
     // This only affects cost, but may have an effect in a large-scale strategic setting.
-    private boolean modular = false;
+    private boolean modularOrKFAdapter = false;
     
     @Override
     public int getUnitType() {
@@ -43,6 +46,14 @@ public SpaceStation() {
             .setAvailability(RATING_C, RATING_D, RATING_C, RATING_C)
             .setStaticTechLevel(SimpleTechLevel.ADVANCED);
 
+    private static final TechAdvancement TA_SPACE_STATION_KF_ADAPTER = new TechAdvancement(TECH_BASE_ALL)
+            .setISAdvancement(2350, 2375, DATE_NONE, 2850, 3048).setClanAdvancement(2350, 2375)
+            .setPrototypeFactions(F_TH).setProductionFactions(F_TH)
+            // The adapter itself is tech rating C, but this is the base for a station with an adapter.
+            .setReintroductionFactions(F_FS).setTechRating(RATING_D)
+            .setAvailability(RATING_D, RATING_F, RATING_D, RATING_D)
+            .setStaticTechLevel(SimpleTechLevel.ADVANCED);
+
     private static final TechAdvancement TA_SPACE_STATION_MODULAR = new TechAdvancement(TECH_BASE_ALL)
             .setISAdvancement(2565, 2585, DATE_NONE, 2790, 3090).setClanAdvancement(2565, 2585)
             .setPrototypeFactions(F_TH).setProductionFactions(F_TH)
@@ -52,26 +63,43 @@ public SpaceStation() {
 
     @Override
     public TechAdvancement getConstructionTechAdvancement() {
-        return modular? TA_SPACE_STATION_MODULAR : TA_SPACE_STATION;
+        if (isModular()) {
+            return TA_SPACE_STATION_MODULAR;
+        } else if (hasKFAdapter()) {
+            return TA_SPACE_STATION_KF_ADAPTER;
+        } else {
+            return TA_SPACE_STATION;
+        }
     }
-    
+
+    public static TechAdvancement getKFAdapterTA() { return TA_SPACE_STATION_KF_ADAPTER; }
+
     public static TechAdvancement getModularTA() {
         return TA_SPACE_STATION_MODULAR;
     }
-    
+
     /**
      * Designates whether this is a modular space station
-     * @param modular
+     * @param modularOrKFAdapter Whether the space station can be transported by jumpship.
      */
-    public void setModular(boolean modular) {
-        this.modular = modular;
+    public void setModularOrKFAdapter(boolean modularOrKFAdapter) {
+        this.modularOrKFAdapter = modularOrKFAdapter;
     }
     
     /**
-     * @return True if this space station has a modular construction, otherwise false.
+     * @return True if this space station has a modular construction (or has a KF adapter for stations less than 100kt,
+     *         otherwise false.
      */
+    public boolean isModularOrKFAdapter() {
+        return modularOrKFAdapter;
+    }
+
     public boolean isModular() {
-        return modular;
+        return modularOrKFAdapter && getWeight() > MODULAR_MININUM_WEIGHT;
+    }
+
+    public boolean hasKFAdapter() {
+        return modularOrKFAdapter && getWeight() <= MODULAR_MININUM_WEIGHT;
     }
 
     @Override
@@ -81,7 +109,13 @@ public double getCost(CalculationReport calcReport, boolean ignoreAmmo) {
 
     @Override
     public double getPriceMultiplier() {
-        return modular ? 50.0 : 5.0;
+        if (isModular()) {
+            return 50.0;
+        } else if (hasKFAdapter()) {
+            return 20.0;
+        } else {
+            return 5.0;
+        }
     }
 
     /**
diff --git a/megamek/src/megamek/common/loaders/BLKFile.java b/megamek/src/megamek/common/loaders/BLKFile.java
index 26ad00ea777..dbe02215953 100644
--- a/megamek/src/megamek/common/loaders/BLKFile.java
+++ b/megamek/src/megamek/common/loaders/BLKFile.java
@@ -26,8 +26,6 @@
 import megamek.common.util.BuildingBlock;
 import megamek.common.weapons.bayweapons.BayWeapon;
 import megamek.common.weapons.infantry.InfantryWeapon;
-import org.w3c.dom.Element;
-import org.w3c.dom.NodeList;
 
 public class BLKFile {
 
@@ -1106,7 +1104,7 @@ public static BuildingBlock getBlock(Entity t) {
                 blk.writeBlockData("jump_range", ws.getJumpRange());
             }
         } else if ((t instanceof SpaceStation)
-                && ((SpaceStation) t).isModular()) {
+                && ((SpaceStation) t).isModularOrKFAdapter()) {
             blk.writeBlockData("modular", 1);
         }
 
diff --git a/megamek/src/megamek/common/loaders/BLKSpaceStationFile.java b/megamek/src/megamek/common/loaders/BLKSpaceStationFile.java
index bd2d5a6af45..ab5d8335282 100644
--- a/megamek/src/megamek/common/loaders/BLKSpaceStationFile.java
+++ b/megamek/src/megamek/common/loaders/BLKSpaceStationFile.java
@@ -125,7 +125,7 @@ public Entity getEntity() throws EntityLoadingException {
         }
 
         if (dataFile.exists("modular")) {
-            a.setModular(true);
+            a.setModularOrKFAdapter(true);
         }
 
         // Grav Decks - two approaches