Specna Arms Upper Receiver for Specna Arms CORE™ M4/AR-15 AEG

If you need to fix up your Specna Arms CORE™, you need this upper receiver! It is a replacement original part, and is a perfect replacement part if your old upper receiver is looking worse for wear. The upper receiver comes with a pre-installed mock forward assist and dust cover, but you will need to source a mock bolt carrier and charging handle separately.