These machined wooden tail kits appear very similar to machined plastic units seen in earlier munitions. Those were inspired by a rocket propelled grenade. Did they run out of plastic?
The warhead appears to be a grenade with additional metal bonded to the outside for greater fragmentation.
SDF seize ISIS weapons and electronics in Raqqa, Syria. In the cache were a handful of UAS bomblets with fragmentation and wooden tail fins. pic.twitter.com/qUrMeZ2oeK
— Counter-IED (@CounterIED1) October 2, 2017