http://www.wildwestguns.com/EStore/M...G04/wwg04.html 
Wild West Guns - Model 04
500 S&W/454 lever action rifle
17-4 PH Stainless Heavy Duty
CNC Machined Receiver
Fast Action Hammer Safety
Take-down or standard rifle
16 ½ or 18 ½ inch barrel
Walnut, Laminate or Synthetic Pistol Grip Stock
WWG Thru Bolt Locking System
WWG Big Loop Lever
WWG Bear Proof Ejector
WWG Aluminum Magazine Follower
Safety Slotted Magazine Tube
WWG Ghost Ring Sight System
WWG Trigger System
Action Tuned for Reliability
Pachmayr Decelerator Pad
Optional Recoil Control Porting