Macaroon 3D Printed MAC-11 Lower Receiver with LRBHO

The Macaroon is a highly customizable MAC-11 lower receiver. It utilizes the proven combination of AR fire control group and Glock magazines, and features a robust LRBHO (last round bolt hold open) and reversible magazine release. No proprietary or custom fabricated parts are required. Also included in this release is the BentoBox, a compensator designed to pair with the Macaroon, and the MCXish folding brace/stock.