MSR does not currently have replacement tips to purchase or rubber universal tips. Adjacent trekking pole brands have rubber tips available that may be compatible with MSR model trekking poles. We would recommend sourcing these rubber tips through your local outdoor specialty retailer or via any number of associated online vendors. It is best visit your local retailer in person to test fit.
Currently we do not offer any repair services for our trekking or backcountry poles. Replacement baskets are available you can find them on MSR's website here.