Forward Controls Design RE5F 9 Position A5 Compatible Receiver Extension


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SKU: RE5F UPC: 682157948659

Product Description

RE5F is a 9 position 308 AR-compatible receiver extension (RE), it is also compatible with Vltor’s splendid A5. REF5 is a collaboration with SOLGW and is identical to Sons of Liberty Gunworks Loyal 9 A5 RE save for the respective company logo/name engravings. Forward Controls had contributed design input (extra drain holes and softening of sharp corners), there was nothing else they deemed a receiver extension could do better or need to be improved on, so Loyal 9 / REF5 may look like other REs but with ergonomics and sensible changes, they’re made for work, not for show.

RE5F is compatible with 308 ARs and Vltor’s A5 system. For AR15/M16 applications, it must use Vltor A5 or A5 compatible buffers, rifle length recoil springs (Vltor’s A5 spring or Sprinco’s Green spring).


  • Material: Impact extruded 7075 aluminum with rolled threads.
  • Finish: Black anodize.
  • The interior is dry film lubed.
  • The body diameter is milspec (compatible with all milspec carbine stocks).
  • Extra drain holes to better and more quickly drain water inside the RE.
  • 308 AR-compatible.


For use on AR15/M16, RE5F requires a Vltor A5 buffer, rifle length / A5 / Sprinco Green recoil spring. RE5F is incompatible with standard TDP spec buffers and carbine buffers.




Technical Information

Color / Pattern


7075 Aluminum



Firearm Compatibility


Catalog Location

California Prop 65 Warning

WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information visit

Customer Reviews

Based on 3 reviews
Justin L.
Forward Controls Design RE5F

I bought this to replace a BCM MK2 A5 receiver extension. Really dig the position marking, the extra drain holes, and extra 2 stick positions. Even if you're never going to go that far of LOP. And of course the cygnus logo on the bottom adds some extra flare

Ant G.
Great tube

Works well. Nothing major. Really is just like solgw's. Different label. But does what it's supposed to.

A5 Buffer Tube for Mil Spec Stock

Forward Control Design A5 Buffer Tube for Mil Spec Stock is well made for the Vltor buffer system and allows a collapsible stock to be used.