[Kailo]

Use this. Offsets updated some times. HE 15, flashbang 16, smoke 17, molotov and incendiary grenade 18, decoy 19. And type Prop_Send for use net edicts.

PHP Code:

#include <sourcemod>
#include <sdktools>

#define     HEGrenadeOffset         15
#define     FlashbangOffset         16
#define     SmokegrenadeOffset        17
#define     IncenderyGrenadesOffset    18    // Also Molotovs
#define     DecoyGrenadeOffset        18

public OnPluginStart()
{
    RegConsoleCmd("sm_test", test, "show # of grenades");
}

public Action:test(client, arg)
{
    new String:sWeaponName[64];
    GetClientWeapon(client, sWeaponName, sizeof(sWeaponName));
    PrintToChat(client, "%s", sWeaponName);
    PrintToChat(client, "IncGrendae: %d", GetEntProp(client, Prop_Send, "m_iAmmo", _, IncenderyGrenadesOffset));
    PrintToChat(client, "HEGrenade: %d", GetEntProp(client, Prop_Send, "m_iAmmo", _, HEGrenadeOffset));
    PrintToChat(client, "SmokeGrenade: %d", GetEntProp(client, Prop_Send, "m_iAmmo", _, SmokegrenadeOffset));
}