Bitzenburger Nock Receiver 1001269 Silver. Recommended for use with straight clamp. Specifications for Bitzenburger Nock Receiver 1001269: Manufacturer: Bitzenburger Color: Silver Features of Bitzenburger Nock Receiver: Indexed at 120 degrees for cock fletch up or down Recommended for use with straight clamp Package Contents: Bitzenburger Nock Receiver Bitzenburger 3006: Nock Receiver 1001269 Silver