SILENCERS
The benefits of fitting a silencer to a air rifle would be to reduce the noise produced by the rifle discharging air when a shot is fired. This would not only be a protective measure to a person's hearing but would also limit the sound the targets would hear when the shot is fired.
REASONS WHY
POWER PLENUM
The plenum in an airgun is the chamber of compressed air located between the regulator and the valve. ... The combination of pressure and volume of air released is a the key factor in achieving power in a PCP air rifle. Generally-speaking, the larger the plenum, the more power can be generated by the airgun.
CARBON FIBER SHROUD
Improve the looks and stability of your barrel by adding a carbon fiber shroud. The carbon fibre shroud slides over the current barrel.