Build an LSA-9 AR-9 into any configuration with our receiver sets. Now you have the freedom to choose your own trusted parts and build the rifle of your dreams!

Upper Receiver Features:

Precision CNC machined from 7075-T6 billet aluminum.
Lead Star's truss system design reinforces key areas for increased strength without added weight.
Flat top Picatinny design for versatility in mounting optics and other enhanced components.
CNC engraved numbered rail system for indexing.
Designed to be compatible with MIL-spec lower receivers so it can be used, if necessary, but lines will not match.

Lower Receiver Features:

Includes our integrated feed ramp for reliable feeding including hollow points!
Integrated and reliable LRBHO (last round bolt hold-open) for AR-15 bolt release functionality in an AR-9. LRBHO is easily removed with 3 screws for competition shooters. Use with Lead Star Arms bolt carrier groups, these were tested during development and proven to work reliably for the last round bolt hold-open function.
Huge magwell entry chamfer for way faster and easier magazine changes. No aftermarket funnel is needed it is so large.
Glock magazine compatible.
Fully CNC machined from 7075-T6 billet aluminum for extreme precision and enhanced durability.
Lead Star's truss system design reinforces key areas for increased strength without added weight.
The front magwell grip surface is designed for the operator to grip and maintain weapon control even in the most extreme conditions.
Beveled magwell entry allows faster magazine changes.
Tension device to increase rigidity between upper and lower receivers.
A built-in trigger guard eliminates the need for a flip-down trigger guard.
Designed to be compatible with MIL-spec upper receivers so it can be used, if necessary, but lines will not match.

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If you live in California, please read this notice before ordering.

Shipping Restrictions

It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

All NFA Rules Apply

These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

Magazines will be removed from firearms when shipping to states with magazine capacity restrictions.

Must be 21 or older to purchase.

WARNING: Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm. Wash hands thoroughly after handling. For more information go to www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).

Lead Star Arms LSA-9 PCC / AR-9 Receiver Set, Black

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