Watson W881 super gainer; antenna connector broken off?

[balacau]

My first post here.

I must admit I don't know all too much about scanners, having only recently got myself a Yupiteru MVT7100 on eBay to listen to marine traffic in my area.

I bought both a Watson W881 super gainer and a Watson W801 regular gainer on eBay which arrived today. I notice that the turning lock on the BNC connector is missing for the super gainer although it still seems to pull signals in OK.

Is it possible to buy one of these as a spare part? If not, as long as it works then that's fair enough. I didn't really consider using the W881 when out and about anyway.

Thanks for any help.

Best regards

Gavin