Agency Arms Glock 17 Gen3 Magazine Well Black. The magazine well provides an extra "bump" to rattle the magazines as they sit in the pan. The smooth interior also allows the installation of an Agency Arms sound suppressor or can be used in conjunction with an external sound device such as an ECR suppressor. The smaller overall footprint of this magwell also allows it to be installed in conjunction with any Agency Arms sound device (e.g. ECR ECU etc) without being oversized. The product is machined from stainless steel and is TIG or machined from hardened tool steel. Specifications for Agency Arms Glock Magazine Well: Manufacturer: Agency Arms Color: Black Package Contents: Agency Arms Glock Magazine Well Agency Arms AGEMW-G17G3-B: Glock 17 Gen3 Magazine Well Black