Forward Controls Design RHF4 11.5″ Handguard FDE (AR-15)

Forward Controls Design RHF4 11.5″ Handguard FDE (AR-15)


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Forward Controls Design | Stockpile Defense


Extremely durable, and versatile when it comes to mounting options.

The RHF4 does not come with the TDP barrel nut. This will need to be purchased separately.


RHF4 comes in two lengths, 11.5″ and 9.5″. It is a quad rail handguard based on the successful Centurion Arms C4 rail system.  It is a lightweight, rugged, 2 piece free float rail that provides a continuous 12o’clock rail when installed on the upper receiver.  Like the C4 system, RHF4 is a rigid rail that clamps to a standard barrel nut on all AR15, M4, and M16 type weapons systems. This design allows the installation of the rail on an upper assembly without removing the front sight post or permanently attached muzzle devices. The RHF4 has KAC rail panel clip cutouts in front and back.


RHF4 isn’t compatible with the A2 FSP without modification.
2021 production RHF4 does not have the 1913 rail numbers (T marks).



• Material: 6061 T6

• Finish: Type 3 hard coat anodized

• Weight: RHF4 11.5: 12.4oz with screws/1.1oz with standard barrel nut.

• Length: RHF4 11.5: Top and sides: 11 1/2in.  Bottom: 10 5/8in.

• Width: 2.1in

• Height: 2.38

• Inside diameter: 1.37

• Rails: 1913 spec rail

• Fasteners: Grade 8 bolts, phosphate finished

• Made In The USA

Additional information

Weight 1.50 lbs
Dimensions 7 × 5 × 14 in


Forward Controls Design

Forward Controls Design | Stockpile Defense


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