Model base on AFC airgun
"The Condor is for shooters who need a rifle that is not only more powerful than a spring-piston air gun, but is also more powerful than any other pre-charged pneumatic rifle. It is the most powerful pre-charged air gun on the market as it easily achieves 1250 feet per second in .22 caliber. The Condor is light weight (6.5 lbs) and offers adjustable power (600-1300fps depending on power setting, caliber, and pellet weight). Dial the power down for target shooting at close ranges, or dial the power up for long range small game hunting.

An integral extended scope rail allows for easy mounting of lasers, bipods, and other accessories to provide the shooter with an adaptive air gun shooting system. Designed for air gun hunting in the growing number of states that allow hunting, this system can also be used by various military and law enforcement agencies for pest control or special tactical applications."

Anyone who will improve the design do it please

note: if you want more detail or custom, contact me by email
Let’s GO DESIGN