These NEW 247mm Ultimate Tightbore Barrels by Madbull provide the tightest air seal for an AEG, ultimately improving muzzle velocity and performance. These enhanced inner barrels are precision machined from aluminum and sport a 6.01mm diameter, providing maximum accuracy and increased FPS in any AEG. Only precision grade BBs should be used with this inner barrel to avoid jamming. Measuring 247mm long, this tightbore barrel should be compatible with most AEGs' hop-up systems. This 247mm inner barrel's length is specifically designed for G36/R36, P90, CAR-15 and SIG 552 series metal gearbox airsoft guns, however it can also be used with nearly any other short barreled AEG. Professional installation is recommended, and ensure proper feeding and fitment. Lastly, the super slick finish strengthens and protects the barrel, as well as minimizing overall friction. Maximize your AEG's performance by picking up Madbullâ€™s Ultimate Tightbore Barrel today!
NOTE: This inner barrel comes ready to use, though professional installation is recommended or may be required. Please only use high-quality precision seamless BBs in your airsoft gun after installing this barrel, as inferior grade BBs (i.e., ones from sporting goods stores) WILL jam inside this barrel.