Matrix CNC 14mm Positive (+) to 14mm Negative (-) Flashhider / Barrel Adapter for Airsoft AEG

Have an AEG with a 14mm+ (G&P?) adapter but the accessory you want to attach is 14mm- thread? Problem solved! Features: Precision CNC Machining. Perfect for barrel extension or mock silencer, tracer, flashhider attachments. Matt black finish Application: Convert a 14mm clockwise (positive) thread to a 14mm counter-clockwise (negative) thread. Outer barrel diameter is 18mm Manufacturer: King Arms / Pro-Arms / Matrix / Madbull