Powder River Precision Magazine Release for Springfield Echelon Black. This mag release fits both the full-size and compact grips. It is fully ambidextrous and reversible allowing it to be installed with the extended side facing either left or right. It is machined from hardened 416 stainless steel. The extended side is about .125in longer than the factory version. Specifications for Powder River Precision Magazine Release for Springfield Echelon: Manufacturer: Powder River Precision Hand: Ambidextrous Finish: Hardened Fabric/Material: 416 Stainless Steel Package Contents: Powder River Precision Magazine Release for Springfield Echelon Powder River Precision PRP-ECH-MR-B: Magazine Release for Springfield Echelon Black