Check the listing for details. MEC Return Spring (385Q) / Primer Spring (285P). Condition: New, Made in United States. Listed at 2.00 USD. The MEC Return Spring (385Q) and Primer Spring (285P) are essential reloading parts manufactured by MEC specifically for shotguns. These springs are designed to provide reliable performance and consistent functionality in reloading presses, ensuring smooth and precise operation during the reloading process. Whether for hunting or sporting goods use, these high-quality springs from MEC are a must-have for any reloader looking to enhance their equipment with durable and dependable components.