Core component

AR-15 Lower Receivers by Brand

The serialised part, and the one the law treats as the firearm. Stripped or complete, forged or billet - pick a brand to compare what it makes.

5 brands, 14 models listed. Checked 2026-08-01

• Aero Precision

  mid

  The M4E1 lower reworked the standard forging with threaded takedown pin detents and an integrated trigger guard, and became the default mid-price builder lower.

  4 models · Lakewood, Washington

• Anderson Manufacturing

  budget

  The price floor for a forged, serialised lower from a established manufacturer. Plain mil-spec, no proprietary features.

  3 models · Hebron, Kentucky

• Bravo Company Manufacturing

  mid to premium

  Straight mil-spec forgings held to the same tolerances as the rifles, with no added features.

  2 models · Hartland, Wisconsin

• Spike's Tactical

  mid

  Known for the engraved lower series. Mechanically standard forgings; the differentiation is cosmetic and collectable.

  3 models · Apopka, Florida

• Radian Weapons

  premium

  Billet receivers with genuinely ambidextrous controls machined in rather than bolted on. The AX556 set is the reference for a fully ambi build.

  2 models · Redmond, Oregon