Bit of an obscure question here!!!

I have had my 200 about 3 months now and there is a little rubber plug type thing on the barrell that sits between it and the underlever, this has today broken off!!

Not too keen to call air arms incase they say return it, and i know postage is not covered in the guarantee so it could cost a fortune for this little piece of rubber!!

Anyone any ideas where i might get one or had any similar problems themselves?

Any advice greatly appreciated!


PS cheers to the guys for their zeroing tips last night, now shooting 25mm groups @ 30 m!!