Bolt action air rifle

These are Bolt Action "sniper" rifles. Before each shot is fired, the shooter has to pull the bolt, cock the piston and load BB into the chamber. All three versions share the same stock, same internals and same air chamber. Pro-sniper version has black stock, 430mm long inner barrel and most accurate of the three versions. Real Shock version has a metal weight in the piston to simulate recoil. Real Shock has simulated wooden stock and same 430mm long inner barrel. However, due to the vibration caused by the heavier piston's impact, Real Shock is the least accurate of the three, albeit only by less than an inch difference in 20m distance. G-spec is shortened version with a silencer attached. Inner barrel is 303mm long, but slightly tighter bore. Due to short inner barrel it's accuracy is close to Real Shock, but a couple mm more accurate. A needle like contraption called air brake pretrudes from the piston. Air brake plugs the cylinder before piston impacts, trapping last bit of air between piston and cylinder. This reduces impact vibration and adds to VSR series' unique accuracy.