Redding Reloading BIG Boss Press Primer Catcher. The unit consists of a molded cylinder that fits into the frame and is locked into place by a set screw & bushing. A moly-coated web belt is attached to the inside of the catcher which keeps it smooth and straight. The Redding Boss Primer Catcher is made of heavy-duty plastic and includes a screw cam pin & washer. Threads onto the press shaft and is easily installed. Supplied with a snap-in hose end. Specifications for Redding Reloading BIG Boss & Boss Press Primer Catcher: Manufacturer: Redding Reloading Quantity: 1 Color: Black Package Contents: Redding Reloading BIG Boss & Boss Press Primer Catcher Redding Reloading 99215: BIG Boss Press Primer Catcher