- Product Code: 12003
Rise Armament Lower Parts Kit spare parts set is an AR-15 Lower Parts Kit without a trigger, meaning it includes all the functional components of the lower receiver except for the trigger and is compatible with mil-spec AR-15 platforms. Mil-spec compatibility ensures suitability with standard lower receivers, making the set ideal for assembling a new receiver or replacing worn-out parts.
The core of this spare parts set is a comprehensive collection of small parts that allow you to assemble or update the basic functions of an AR-15 lower receiver. The package does not include a trigger, so you can freely choose a trigger according to your preferences and intended use. The parts are sized according to mil-spec standards, which facilitates installation and compatibility with various manufacturers' mil-spec lowers.
The set includes the controls of the lower receiver and related small parts, such as the safety selector, bolt catch, and magazine catch, as well as their associated detents, springs, and roll pins. Assembly is made easier by the inclusion of the necessary detents and springs as a single assembled unit, ensuring consistent replacement and new assembly processes.
Rise Armament Lower Parts Kit – Features:
- Type: AR-15 Lower Parts Kit without a trigger (spare parts set for the lower receiver)
- Compatibility: mil-spec AR-15 lower receivers
- Contents: all functional components of the lower receiver except for the trigger
- Example components: safety selector, selector detent and spring, bolt catch, bolt catch plunger, bolt catch roll pin and spring
- Controls: magazine catch, magazine catch button, and spring
- Body parts: pivot pin and takedown pin along with their detents and springs
- Additional components: buffer retainer and buffer retainer spring
- Possible fasteners: roll pins and other necessary small parts for assembling the lower's functions
- Standard: mil-spec sizing facilitates broad compatibility
- Overall: designed for maintenance, updates, and assembling new AR-15 lowers
- Manufacturer: Rise Armament
Summary: the set is a practical choice when you want to build or maintain a mil-spec AR-15 lower receiver and decide on the trigger yourself. The selection of small parts assembled into one package streamlines installation and reduces the need to search for separate parts.
Usage recommendation: suitable for builders and maintainers who want a mil-spec compatible small parts kit for assembling the functional components of an AR-15 lower receiver without a trigger.
Product text updated on 9.3.2026.
