Rise Armament Premium Lower Parts Kit – AR-15

The Rise Armament Premium Lower Parts Kit provides all the internal components needed to complete an AR-15 lower receiver. This kit includes a mil-spec trigger assembly, safety selector, bolt catch, magazine release, trigger guard, and all required springs and detents—everything except the pistol grip and stock hardware. It's designed for builders who want reliable, properly spec'd parts without paying for features they won't use.

All components are machined from mil-spec materials with a black oxide finish for corrosion resistance. The trigger group is standard mil-spec configuration with a pull weight around 6-7 lbs. Installation requires basic AR-15 assembly tools and knowledge of lower receiver build procedures. Most builders with a punch set, hammer, and patience can complete installation in 30-45 minutes.

• Part Type: Lower Parts Kit (LPK)
• Compatible Firearms: AR-15 lower receivers
• Material: Steel components, aluminum trigger guard
• Finish: Black oxide
• Installation: Drop-in for experienced builders; basic gunsmithing tools required
• Includes: Trigger assembly, safety selector, bolt catch, magazine release, trigger guard, buffer retainer, takedown/pivot pins, springs, and detents (excludes pistol grip and stock hardware)