On that note, Here's a tid bit of info for you Reaver that you might not know about your FAL.
The gun was designed with rifle grenades in mind, and they adjust the gas system to work with the soldier.
If you turn your gas plug in the front 180 degrees you can still fire but the gasses won't enter the piston area and won't cycle the action. this will allow for the blank round used to fire the grenade to exert all it's gasses in the use of shooting out that grenade. upon completion just turn the gas plug back in it's original setting and it will cycle again.