The former `Two and a Half Men` actor - who was fired from the show after he launched a number of bizarre rants against the producers, in particular creator Chuck Lorre - is trying to "contain" himself in the hope of being granted access to his 23-month-old twin sons Bob and Max after estranged wife Brooke Mueller was given custody of the youngsters last week.
He told Life & Style magazine: "I`m really starting to lose my mind. Brooke can`t keep them from me. I won`t let her - I`ll do anything to get them back.
"I`m really trying to contain myself right now. My lawyer wants to come over to my house and take the bullets out of my gun."
Despite the increasingly erratic behaviour of the 45-year-old star in recent weeks, Bob and Max - as well as Charlie`s daughters with ex-wife Denise Richards Sam, seven, and Lola, five - are said to be "doing well".
A source told People magazine: "Bob and Max have no idea what`s going on. Sam and Lola are doing well. They`re continuing with their normal routine."
Meanwhile, Charlie - who also has a 26-year-old daughter Cassandra from a previous relationship - could be set to direct his own porn movie, starring ex-lovers Cassandra Cruz, Elizabeth Ann and Melanie Rios.
According to gossip website TMZ, Steven Hirsch, the boss of adult film company Vivid Entertainment, has offered Charlie full creative control of the proposed movie, including "scenarios, positions, etc".
In his letter to the actor, he said: "The fact that you are the ultimate connoisseur of adult films would definitely work to your advantage."