KeyMod handguard with top Picatinny rail, plus a black barrel

Selling a lot of second-hand airsoft parts, brand unknown. Black metal KeyMod handguard with top Picatinny rail, plus a black barrel with bolt assembly.
Condition: used, good overall condition
Brand: unknown
Compatibility: buyer to check (I don't know the exact model)
Shipping available (buyer pays shipping) or local pickup
Price to be discussed, message me for more photos or details.