AirsoftPro from the Czech Republic have a steel piston catch for the A&K SVD sniper rifle:
We are quickly growing company located in the Czech Republic who design, produce and sell airsoft upgrade parts. Mostly for AEGs and sniper rifles. Made on high precision CNC machines with over 15 years experience in airsoft and over 3 years in business. We sell worldwide. Our full products range can be seen here.
Let me inform you and visitors of your web that we have just kick out new
steel piston catch for A&K SVD Sniper Rifle. Full steel construction. Made
on high precision CNC machines. Stock magazine catch is made of zinc alloy and is easy to worn it. With the stronger spring upgrade you need to
replace stock catch with this hard one. Weight 64 grams. Black chemical
surface. Worldwide shipping.Best Regards, Jan Chyba (AirsoftPro)