This is a pack of four replacement Arrma 3.5x1.9mm P3 O-Rings.
Compatibility.
Arrma Felony 6S BLX
Arrma Fireteam 6S BLX
Arrma Infraction 6S BLX
Arrma Infraction V2 6S BLX
Arrma Kraton 6S BLX
Arrma Limitless
Arrma Mojave 6S BLX
Arrma Notorious 6S BLX
Arrma Outcast 6S BLX
Arrma Senton 6S BLX
Arrma Typhon 6S BLX