Uniquely designed ARCA RAIL (ORIGINAL) runs the full length of the forend, plus extends 2" past the front of the chassis (ARCA-2). Fits all JAE-700 Chassis (Original to G4) as long as you use with NON M-LOK compatible Accessories. Compatible with RRS attachments, JAE NON m-lok Picatinny Rails, JAE NON m-lok Bipod Adapter, & other ARCA Accessories.

NOTE: Does NOT work with JAE-100 Models.