If you are saying your scar has +14mm threads chances are, you will need to either get a +14mm to -14 adapter or purchase the newly released +14mm versions.
If you are saying the flash hider has +14mm positive thread then it will most likely not fit on most aegs as they have -14mm threads. Again an adapter is needed. If you are selling the flash hider because it has +14mm threads, pm me.
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