Brand: Griffin Armament
Model: MK1 Complete Lower
Platform: AR-15
Caliber: Multi-Caliber
Receiver Material: 7075-T6 Aluminum
Receiver Finish: Terra Brown Type III Hardcoat Anodized
Furniture Color: Black
Safety: Ambidextrous
Grip Material: Polymer
Grip Description: Griffin A3 Hand Grip

Features

The MK1 Complete Lower Receiver from Griffin Armament provides a durable and dependable foundation for AR-15 rifle builds. Precision machined from high-grade 7075-T6 aluminum, this complete lower is built to exact tolerances for proper fitment with mil-spec components and consistent performance. A Type III hardcoat anodized finish enhances resistance to wear, scratches, and chemical exposure, ensuring long-term reliability in demanding environments.

This AR-15 complete lower includes all essential controls and is equipped with Griffin’s dimpled takedown pins for improved handling. The system features a Maritime Receiver Extension, buffer spring, and H2 buffer for reliable cycling and smooth operation. A Contour Connect QD end plate with an integrated sling socket provides secure attachment for single-point or two-point slings. Designed for versatility and strength, this complete lower receiver offers a high-quality base for custom AR-15 builds and upgrades.

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Compliance

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).

Griffin Armament MK1 Complete Pistol Lower w/o Brace, Terra Brown