diff --git a/dlls/mp5.cpp b/dlls/mp5.cpp
index 7131f888..a13257a1 100644
--- a/dlls/mp5.cpp
+++ b/dlls/mp5.cpp
@@ -270,6 +270,12 @@ void CMP5::WeaponIdle( void )
 	m_flTimeWeaponIdle = UTIL_SharedRandomFloat( m_pPlayer->random_seed, 10, 15 ); // how long till we do this again.
 }
 
+BOOL CMP5::IsUseable()
+{
+	//Can be used if the player has AR grenades. - Solokiller
+	return CBasePlayerWeapon::IsUseable() || m_pPlayer->m_rgAmmo[m_iSecondaryAmmoType] > 0;
+}
+
 class CMP5AmmoClip : public CBasePlayerAmmo
 {
 	void Spawn( void )
diff --git a/dlls/weapons.h b/dlls/weapons.h
index 7d99e8a6..86e9c7f6 100644
--- a/dlls/weapons.h
+++ b/dlls/weapons.h
@@ -563,6 +563,7 @@ public:
 	BOOL Deploy( void );
 	void Reload( void );
 	void WeaponIdle( void );
+	BOOL IsUseable();
 	float m_flNextAnimTime;
 	int m_iShell;