Matrix Metal Delta Ring Set for M4 / M16 Series Airsoft AEG (Dark Earth)

Matrix Delta Ring Set for M4 / M16 Series Airsoft AEG (Daerk Earth) 

Fits all Marui Compatible RIS / Hand Guard / Metal Bodies. 
(Excluding free float kits, which should include the free float delta ring with kit)

Metal Body compatibility: The threading on this delta ring is designed for AG-K / BOYI / Matrix series metal bodies. 
(For a good fit without having to use any threading tools). (Known: For some metal bodies slight modification might be required, to bypass this modification, use the G&P made delta ring.)