The BAM-QB78 This Industry Brand air rifle has very light weight. It can be handled comfortably. It has a high accuracy and the trigger force is adjustable. The tube is filled with CO2 by placing two CO2 -12 gram cartridges in the tube at once this gives you a more constant psi and stable Velocity. It is one of the most wanted of the Chinese Air Rifles from Shanghai it is a copy of the Crosman 160 trigger lock version. There are many ways to customize the Chinese QB78 like with a Bulk fill adaptor, new stock, muzzle break or even change the barrel take a look at some of the links below. This rifle is great for pest control with the bolt action you will receive at least get 60 - 75 shoots before the psi starts dropping off and changing the CO2 cartridges. CO2 Air Rifles

QB-78 Air Rifle Modification
QB78 ,CR160 Custom Stock blanks
25 Review Centre Shanghi Airgun QB78