ASI offers many different types of Compton Suppression Detector designs. We supply both small and large volume systems in both NaI(Tl) and BGO annular detectors. We build for Standard, Low Background and Ultra-Low Background applications. The options we offer are discussed here. The design shown here with an optional plug detector is an example of an axial through well design. This design easily mates with a coplanar HPGE detector. Other options include an L-well or a T-well.