3 Pack of FloryPB 3D Printed Breech Seals for A1s, and A1 Flys.
These are 3D Printed from TPU and have been made to closely conform to the through hole between the valve and the breach to provide a better and more efficient seal then the originals.
Combined shipping makes these significantly cheaper with the purchase of a board as well.
All shipping is free to buyers and by USPS Priority Mail