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.

Product Code: APAR501603EC

For more information visit: https://www.brownells.com/gun-parts/rifle-parts/rifle-receivers-parts/5.56mm-stripped-upper-receivers-with-no-auto-sear-cut-for-ar-15/

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