Hera USA Side Folding Unit, Weapon Systems with AR15 style buffer tube assemblies. Fits AR15 reciever thread pattern. Will not work with standard pass through buffer/spring assembly. 5-03
The SFU is a sleek and user friendly Adapter for various Systems that use AR15 Style Buffer-tubes and stocks.
FEATURES:
- Side-Folding
- AR-15 Buffer Tubes and Stocks
- Solid Lock-Up
