Knight's Armament Free Float Rail Adapter System's handguard made out of metal.
Fits on JM Gen.9 M4A1, TTM4, FTM, SLR, Kublai and Xpower BD556 receiver shells
Does not fit XM316, JM Gen.8 M4A1 and older generation receiver shells.
Handguard set comes with the following items:
- A2 bird cage metal muzzle
- 9.5 / 11.5 metal outer barrel
- M4 M16 front iron sight
- Centering piece
- Outer barrel adapter