In this T4E maintenance video, we show you how to replace the bolt in the TM4 .43 caliber T4E Paint ball marker rifle and how to lubricate the paintball gun for smooth function and operation. The only tools needed are a punch, hammer, and a little silicone oil like T4E Oil or Elite Force Slick. Get you T4E TM4 Rifle Bolt Carrier here: https://training.t4eguns.com/t4e-tm4-bolt-carrier Need other T4E parts and accessories check here: https://training.t4eguns.com/t4eguns-accessories