#include <sourcemod>
#include <sdkhooks>
#include <sdktools>
#pragma semicolon 1
#pragma tabsize 0;

public OnClientPostAdminCheck(client) SDKHook(client, SDKHook_PostThinkPost, OnPostThinkPost);

public OnPostThinkPost(client)
{  
  if (client && IsClientInGame(client))
  {
   new weapon = GetEntPropEnt(client, Prop_Send, "m_hActiveWeapon");
   decl String:item[20]; item[0] = '\0';
     GetEdictClassname(weapon, item, sizeof(item));

     if (StrEqual(item, "weapon_m4a1")){
   SetEntProp(weapon, Prop_Send, "m_bSilencerOn", 0);
   SetEntProp(weapon, Prop_Send, "m_weaponMode", 0);
     }
  }
}