APAR600002C View cart “Aero Precision M4E1 Multi-Cal AR-15 Stripped Lower Receiver, Flat Dark Earth” has been added to your cart. Showing the single result Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Sale! IN STOCKAero Precision M4E1 Multi-Cal AR-15 Stripped Lower Receiver, Flat Dark Earth $158.29 Original price was: $158.29.$142.46Current price is: $142.46. Add to cart