diff --git a/addons/jam/CfgMagazineWells.hpp b/addons/jam/CfgMagazineWells.hpp
index b6ebc00e8..8799ac510 100644
--- a/addons/jam/CfgMagazineWells.hpp
+++ b/addons/jam/CfgMagazineWells.hpp
@@ -70,6 +70,7 @@ class CfgMagazineWells {
 
 
     // Grenade/Flare Launchers, ordered lexicographically
+    #include "magwells_22mm.hpp"
     #include "magwells_35mm.hpp"
     #include "magwells_40mm.hpp"
 
diff --git a/addons/jam/magwells_22mm.hpp b/addons/jam/magwells_22mm.hpp
new file mode 100644
index 000000000..0ee95c4ad
--- /dev/null
+++ b/addons/jam/magwells_22mm.hpp
@@ -0,0 +1 @@
+    class CBA_22mm_NATO_Spigot {};       // NATO Standard 22mm Spigot Rifle Grenades
diff --git a/addons/jam/magwells_50BMG.hpp b/addons/jam/magwells_50BMG.hpp
index 5044c0a70..498f6697e 100644
--- a/addons/jam/magwells_50BMG.hpp
+++ b/addons/jam/magwells_50BMG.hpp
@@ -1,2 +1,3 @@
-    class CBA_50BMG_AS50 {};        // Accuracy International AS50
-    class CBA_50BMG_M107 {};        // M82, M107, G82
+    class CBA_50BMG_AS50 {};            // Accuracy International AS50
+    class CBA_50BMG_M107 {};            // M82, M107, G82
+    class CBA_50BMG_PMG_Hecate_II {};   // PGM Hécate II, PGM Hecate II
diff --git a/addons/jam/magwells_762x51.hpp b/addons/jam/magwells_762x51.hpp
index 9e079e2bc..b298df7df 100644
--- a/addons/jam/magwells_762x51.hpp
+++ b/addons/jam/magwells_762x51.hpp
@@ -16,6 +16,8 @@
     class CBA_762x51_FAL_L {};      // FN FAL long mag (25/30 rounds)
     class CBA_762x51_FAL_XL {};     // FN FAL drum mag (X-Products 50 round)
 
+    class CBA_762x51_FRF2 {};       // FR F2, FR-F2
+
     class CBA_762x51_G3 {};         // H&K G3
     class CBA_762x51_G3_L {};       // H&K G3 long mag (25/30 rounds)
     class CBA_762x51_G3_XL {};      // H&K G3 drum mag (X-Products 50 round)
diff --git a/addons/jam/magwells_9x19.hpp b/addons/jam/magwells_9x19.hpp
index 6299e77d6..3350930f7 100644
--- a/addons/jam/magwells_9x19.hpp
+++ b/addons/jam/magwells_9x19.hpp
@@ -48,7 +48,8 @@
             "30Rnd_9x21_Green_Mag"
         };
     };
-    class CBA_9x19_STEN {};         // STEN
+    class CBA_9x19_STEN {};         // STEN, Lanchester SMG
+    class CBA_9x19_Sterling {};     // Sterling SMG
     class CBA_9x19_STEYR {};        // AUG SMG, MPi, TMP
     class CBA_9x19_TT {};           // TT-33 Tokarev in 9x19mm (M48, Tokagypt 58, Type 54)
     class CBA_9x19_UMP {};          // HK UMP 9