The FLR is billed as “…the world’s first folding AR-15 lower receiver – no adapter ... directly into the receiver, allowing the stock or pistol brace to fold without the need of an ...

The typical AR-style rifle or pistol relies on a buffer mechanism housed in its tubular stock extension for reliable operation. That fact precluded development of a folding stock assembly for such ...

pistol with a folding stock, a quick release barrel assembly ... It shipped with an AR-15 buffer and spring, both of which were traded out for Mk3 series AR-10 compatible parts.