AR 15 Lower Receiver Parts for Sale

For the DIY black rifle builder, Red Barn Armory has a great selection of AR 15 lower receivers and AR 15 lower parts that help you to save money on your platform and give your rifle the customization needed to make it like no other. Whether you are looking to upgrade or build a complete AR15 lower, we've got you covered. No one knows the black rifle like Red Barn Armory, and with great prices and FREE shipping on orders over $99, you’re sure to save money when you do business with us.

Red Barn Armory has AR15 lower kits, full lowers, and AR 15 lower parts for sale, all from top manufacturers including:

  • KNS Precision
  • Phase 5
  • Battle Arms Development
  • Magpul
  • DPMS
  • JP
  • Troy
  • CMC Triggers
  • CMMG
  • Spike’s Tactical
  • CMT
  • New Frontier Armory
  • Anderson Mfg
  • Seekins Precision
  • Mega Arms
  • Doublestar and more

*Please Note: AR 15 lower receivers must be shipped to a FFL holder per federal law. FFL transfer fees may be incurred by the receiving FFL dealer in your area. Additionally, state and local laws in your area may prohibit the ownership, purchase, or transfer of certain firearms. Please check with you local/state authorities to ensure you are following the law.