New From Briley! Stainless Steel Piston For Winchester SX2/SX3/FN SLP/ and Browning gold Shotguns. Remove that aluminum piston in your gun and replace it with Briley's new skelotinzed Steel Piston. The aluminum pistons are known to break when you least expect it, don't be that person. Briley has been making these pistons by hand for noted shooters like Bobby Fowler and Benny Cooley, and now we are manufacturing them for the general public. The piston comes with the outer shell, and everything you see in the pictures above, and you must put all of your internal parts from your existing piston into the new skeletonized piston, and then your ready to shoot with peace of mind that you have a durable setup that will last!

The piston and Lock nut are both of 416 Stainless and are supplied with the outer seal ring and tool for assembly and disassembly of your existing piston.  You are to use the original factory internal Parts.