Air rifle parts

[terrier1]

Hi all can anyone tell what this is it came with some air rifle equipment that I have been asked to sell for the wife of a deceased shooting friend. It is heavy for its size.

 

[riflerob]

Looks like the protective cap that goes over the filling probe on a PCP.

 

[flatliner]

Buddy bottle cap?

 

[AccuracyNut]

As above, this is a protective cap for the buddy bottle from the Rapid range of rifles. It will fit any other bottle that uses a 1/4”BSP thread.

 

[terrier1]

Thanks for all the information. Much appreciated.

 

[windygun]

Very desirable accessory for the Rapid 7 enthusiast. Stick it on ebay with a 99p start and expect it to fetch £35-£40.
I may even have a bid myself and ive already got 3.