Build or refresh your AR-15 lower receiver with confidence using the Guntec AR-15 Complete Lower Parts Kit. This US-made, mil-spec kit delivers every essential component needed for a reliable, functional lower assembly, allowing custom builders to focus on their preferred stock, grip, and upper without sourcing individual parts.
Specifications
- Weight: 8 oz
- Dimensions: 6 in (L) x 4 in (W) x 2 in (H)
- Compatibility: Standard AR-15 lower receivers
- Material: Steel components with varied finishes
- Caliber compatibility: .223 Rem, 5.56x45mm, .300 Blackout









