Scope housing size: 1 3/4 inches

• Thread: 3/8" x 32

Compatible with all Achieve XP

Precision Machined to

• Accurate to within +/- 0

Phelps Amp Pitch Black Diaphragm Elk Calls 3pk sitka_sale Scope housing size: 1 3/4"PITCH BLACK SERIES: These calls feature a newly specified pitch black latex and the results are impressive. They are built off of the popular AMP frame and come in a three pack. Pitch Black 1: Has a looser stretch for easy cow calls and all of the bull vocalizations. Very easy to use and quiet when needed. Pitch Black 2: Has a medium stretch similar to the popular Maverick and Phelps Signature diaphragms. This is a do it all call. Pitch Black 3: