diff --git a/megamek/docs/history.txt b/megamek/docs/history.txt
index e56387d555b..af2404afb51 100644
--- a/megamek/docs/history.txt
+++ b/megamek/docs/history.txt
@@ -13,6 +13,7 @@ MEGAMEK VERSION HISTORY:
 + Fix #5951: Orphaned ghost entity sprites in (double blind) deployment when pressing 'next unit'
 + PR #5981: Respecting Trademarks (Mech to Mek)
 + PR #5989: Another fix for various Board/GUI items being out of sync with the currently selected unit
++ Fix #6005: Aero damage of RISC Hyper Laser
 
 0.50.0 (2024-09-01 2000 UTC) (THIS MARKS THE START OF JAVA 17 AS THE MINIMUM REQUIRED)
 + PR #5649: Use UTF encoding for reading MTF files (This might fix the issues #5648 and #5647)
diff --git a/megamek/src/megamek/common/AmmoType.java b/megamek/src/megamek/common/AmmoType.java
index 127ecead131..dd1d02187dd 100644
--- a/megamek/src/megamek/common/AmmoType.java
+++ b/megamek/src/megamek/common/AmmoType.java
@@ -1999,8 +1999,8 @@ public static void initializeTypes() {
 
         munitions.add(new MunitionMutator("Follow The Leader", 2, Munitions.M_FOLLOW_THE_LEADER,
                 new TechAdvancement(TECH_BASE_IS).setTechRating(RATING_E)
-                        .setAvailability(RATING_F, RATING_X, RATING_E, RATING_X)
-                        .setISAdvancement(2750, DATE_NONE, DATE_NONE, 2770, 3046)
+                        .setAvailability(RATING_F, RATING_F, RATING_F, RATING_F)
+                        .setISAdvancement(2750, DATE_NONE, DATE_NONE, 2770, DATE_NONE)
                         .setISApproximate(true, false, false, true, false)
                         .setPrototypeFactions(F_TH)
                         .setReintroductionFactions(F_FS, F_LC)
diff --git a/megamek/src/megamek/common/weapons/lasers/ISRISCHyperLaser.java b/megamek/src/megamek/common/weapons/lasers/ISRISCHyperLaser.java
index 3b613a5908d..f465d8a6e4c 100644
--- a/megamek/src/megamek/common/weapons/lasers/ISRISCHyperLaser.java
+++ b/megamek/src/megamek/common/weapons/lasers/ISRISCHyperLaser.java
@@ -50,6 +50,8 @@ public ISRISCHyperLaser() {
         cost = 750000;
         shortAV = 20;
         medAV = 20;
+        longAV = 20;
+        extAV = 20;
         maxRange = RANGE_EXT;
         explosionDamage = 10;
         explosive = true;
@@ -58,6 +60,7 @@ public ISRISCHyperLaser() {
         techAdvancement.setTechBase(TECH_BASE_IS).setTechRating(RATING_F)
                 .setAvailability(RATING_X, RATING_X, RATING_X, RATING_E)
                 .setISAdvancement(3134, DATE_NONE, DATE_NONE, 3141, DATE_NONE)
+                .setISApproximate(false,false,false,false,false)
                 .setPrototypeFactions(F_RS).setStaticTechLevel(SimpleTechLevel.EXPERIMENTAL);
     }