This is the rear valve connector for element max to connect large tank. it works on elment max 457,50,510 and 58
FRIENDLY ALERT：Please read below the TERMS and the RETURN/ EXCHANGE POLICY carefully before you purchase. We appreciate your patience. We do not accept returns or exchanges unless the item you purchased is defective.
This listing complies with USA air gun guidelines and I will only sell and ship air guns to buyers in jurisdictions where permitted by applicable laws