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Unfortunately, the following product is currently unavailable through Rainier Arms.

F4 Defense F4-15 Stripped AR-15 Lower Receiver

AR-15 Stripped Lower Receiver



  • Precision CNC machined from Aerospace Aluminum Billet 7075-T6
  • AMBI Bolt Catch (Hardware Included)
  • AMBI Mag Release (Hardware Included)
  • Features: Flared Magwell (Wire EDM)
  • Trigger Finger Index Position
  • Bullet Picto-Graphed Short Throw Safety
  • Upper Takedown Tension Adjustment
  • Oversized and Beveled Trigger Guard to Accommodate Shooters Wearing Gloves
  • Bolt Catch Set Screw
  • Type III/Class II Anodized
  • American Made with American Metal
  • Weight:  8.48 ounces


FFL Required Before Shipping.

Please have your dealer email their license to [email protected] or they can also fax it in. Please give us a few days to process the information.

More Information
Product Type AR-15 Stripped Lower Receiver
Manufacturer F4 Defense
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