diff --git a/addons/ballistics/CfgWeapons.hpp b/addons/ballistics/CfgWeapons.hpp
index 2dfc62b754..4f23852f2a 100644
--- a/addons/ballistics/CfgWeapons.hpp
+++ b/addons/ballistics/CfgWeapons.hpp
@@ -101,7 +101,7 @@ class CfgWeapons {
     // Rifle_Long_Base_F MG
     // Stoner 99 LMG
     class LMG_Mk200_F: Rifle_Long_Base_F {
-        ACE_barrelLength = 317.5;
+        ACE_barrelLength = 381;
         ACE_barrelTwist = 177.8;
         initSpeed = -0.999327;
     };
diff --git a/addons/realisticweights/CfgWeapons.hpp b/addons/realisticweights/CfgWeapons.hpp
index 02b44bbcc2..771b32b96f 100644
--- a/addons/realisticweights/CfgWeapons.hpp
+++ b/addons/realisticweights/CfgWeapons.hpp
@@ -202,7 +202,7 @@ class CfgWeapons {
     // - Stoner LMG -----------------------------------------------------------
     class LMG_Mk200_F: Rifle_Long_Base_F {
         class WeaponSlotsInfo: WeaponSlotsInfo {
-            mass = 100;
+            mass = 114;
         };
     };