The F-17™ Series is the worlds first gas piston rimfire rifle. It shoots a .17 Winchester Super Magnum Rimfire round that operates at 33,000 PSI while producing velocities up to 3,000 FPS. This design was created to be safer and more reliable since it uses a rotating locking bolt and piston design. The F17™ series is also exempt from many restrictions placed on centerfire rifles in states like California. 
Specifications 
Barrel Length: 16" M4 Contour 
Handguard: 7" TML M-Lok
Sight: Optic Ready 
Twist: 1:9" RH 
Charging Handle: Standard 
Bolt Carrier: .17WSM Salt Bath Nitride 
Lower: FAI 
Trigger: Customer Tuned Trigger 
Gas System: F17 Piston 
Gas Block: Piston 
Muzzle Device: A2 
Color: Gray 
Stock: M4 Design 
Grip: A2 Design 
Magazine: 10/20 rd: 20 rd 
Calibers: .17 Winchester Super Magnum Rimfire 
 
Includes 
Comprehensive Safety Manual 
California Certified Cable Lock 
Lockable Case