Forward Controls Design ESF-H

(End plate, Sling Adapter, Forward Controls Design) is a drop in end plate replacement for the AR platform (both 223 and 308 spec).  Featuring three quick detach sling swivel sockets (two side, and one rear facing), when used in conjunction with a castle nut, ESF will allow retractable carbine stocks to fully collapse.  SOPMOD and B5 Systems Bravo stocks will fully collapse with a rear facing QD swivel installed, other carbine stocks must be closed on the #2 position on the RE (#1 position being fully closed) if a rear facing QD swivel is present.

ESF is available in 7075 aluminum, anodized ESF-L (0.39oz), and 4140 steel, DLC coated ESF-H (1.10oz) versions.  Both ESFs have rotation limited, or non rotation limited side facing sockets option.  The rear facing socket has no limiters, as the receiver extension effectively limits the swivel’s rotation.

4140 DLC coated ESF-H is no light weight at 1.1oz, almost 3 times as heavy as the 7075 ESF-L.  4140 ESF-H is heavy, because it is practically bomb proof, and will outlast the 7075 aluminum receivers.

As is our practice, ESF’s shape is dictated by its functions.  In order to accommodate the rear facing socket, and fill one of the design requirements that ESF must be able to use stakable castle nuts and allow the carbine stock to fully collapse, ESF has a slight increase in width on the sides, and small openings on the top of the sockets housing.  These design cues do not affect ESF’s structural integrity, and mostly go unnoticed by users, they merely reflect a paradox, that it can be quite complicated to create a simplified design.  A seemingly simple product can often be more than meets the eye.