You can buy these individually or in multi-packs (click here for multi-packs) and multi-packs ship free... single Vent Liners do not ship free.
We also sell .036 gage pins to know if its time to replace the vent liner (they start about around .030 and grow as you shoot).
This is an ADD ON ITEM. Add on item's do not ship for free, but can be added to any item already shipping for no additional shipping cost. Or you can purchase Add On Item Shipping. See our Terms of Use for more details.
