Tuning Sig mcx co2 mods

Hi everyone, 



like the title suggests I’m looking into modding my sig mcx co2 pellet rifle



mainly was looking into if there is a way to upgrade the co2 cart seal, hear these leak after a while. Was also interested in knowing if there are any sites or people who make 3rd party parts (replacement hand guard for example since it seems to be made of some composite plastic) or a buffer tube adaptor (I’m mainly a firearms enthusiast, got this sig air rifle for backyard plinking and enjoy swapping out parts)



thank you for your time!
 
Hola. Con el tiempo aparecen fugas de aire en las juntas toricas ( o'rrings ) de la línea interna de transferencia de CO2. Te recomiendo desarmar el rifle con mucho cuidado, ya que tiene muchas piezas y resortes internos y reemplazar los o'rrings del tubo y piezas que unen la línea de entre el cilindro y la bomba de CO2. Como recomendación, no es bueno dejar puesto el cilindro de Co2 después de ocupar el rifle, ya que al ser esté muy frío congela y quema los sellos. 

Saludos.
 
In regards to the O-seals the same goes for the MCX as for any CO2 gun, use Crosman Pelgun Oil or Silicone oil. A drop of oil on the tip of the co2 canister where it's pierced will keep the seals in good order. Without the oil the seals are rapidly dried out and degraded by the co2.

As for actual mods the only one I'm aware of is the conversion to HPA. The US based one is by Air Venturi I think and over here in the UK similar is offered by Best Fittings.