Upper only unused with BCG/CH and mag block for Colt style magazines $299 FTF 48154 no split,no trades.
Ships on your dime.
The BCG is a New Frontier Armory AR-9 Modular 9mm BCG (Glock & Colt Compatible).
The upper is a Anderson Manufacturing Lightweight Sport AR stripped Receiver (no assist, bolt doesn't have notches anyways).
As you can see, the block is a ProMag with ejector and it will fit any mil-spec lower.
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Last edited by gemelli5; 09/18/16.