To install, place PullOutStrap.asi and PullOutStrap.ini into your root folder with ScriptHookV.dll.

Press the "J" key to take out your pistol like gangsters do when you intimidate them and press it again to hide it. When you pull out your strap, you will not be able to use any other weapon until you unequip it and you cannot use this mod unless you have a pistol in your weapon inventory.

You can change the key to use the mod by editing the .ini file with any desired key from:
http://www.cambiaresearch.com/articles/15/javascript-char-codes-key-codes