CAP Arms is a custom order Pneumatic gunsmithing shop with patented technology that doubles the factory power of All Seneca Models (0.224 through 0.500 caliber) product line. We can provide this Handcrafted, Custom Built power tune for your existing Seneca/Sam Yang (see our Seneca Upgrade Service page) OR We can buy a brand new Seneca of your choice and power tune it for you (See our CAP Custom Built page) This upgrade service can take between 3 to 4 months depending on how busy our CNC machine shop is at the time your place your order.

It is a custom built, handcrafted, high performance upgrade of the Iconic 50 caliber Dragon Claw Airgun.  Using our Patented Hyper-Sonic Sleeve Valve Technology, (HSSV) we give you two to three times factory performance in this awesome looking classic hunter!