WAL2456273S Piston Seal

Piston seal, Height: 10.70mm, Width: 29.00mm, Distance From Bottom of Head to Bottom of Clip In Part: 5.5mm, Depth of Head: 5.60mm. Because many of these rifles have had modifications over the years you may have to reduce the depth of the seal to suit. This can be done by turning it down in a lathe or rubbing it over some sand paper taped to a counter top.