M4 Ambidextrous Magazine Adapter Lower (H-Mag System)
Connect your main adapter to this Saturn System Lower to use M4/STANAG AEG magazines! Ordering this will also include the needed mounting hardware (screws, pre-installed nuts).
This is for the older H-Mag System.
M4 AEG magazine and other H-Mag parts (such as Midsection, Upper) not included.