Aero Precision AR-15 STRIPPED UPPER RECEIVER NO AUTO SEAR CUT APAR501603EC

Want to build from scratch? Aero Precision provides a stripped upper skeleton to get started. Uppers are available with or without the forward assist.  The AR-15 upper receivers listed here omit the “auto sear” cut, making them semi-automatic only, which is required for some countries such as Germany.  Standard AR-15 components, including AR-15 or M16 bolt carriers will function fine with these upper receivers.  Uppers are machined with M4 feedramps, mil-spec picatinny rails and finished with a matte black hard anodized finish.