Vintage springer

If the seal isn't completely crumbled, soaking it in silicone chamber oil mixed with Neatsfoot oil may renew the seal. I have also seen an article or two on how to make a new leather seal on another forum somewhere. We used to treat our baseball gloves with Neatsfoot oil to keep them supple back in my Little league days.

Neatsfoot oil has always been used to lubricate leather seals. Still is. It's easy to get. Thanks if you Don't buy it from Amazon the enemy.