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Rise Armament AR-15 Lower Parts Kit
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$49.99
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SKU: WX2*0726066
Overview
Built for assembling a mil-spec AR-15 lower, this 20-piece kit provides the core working components needed for the job, with the trigger sold separately. It is aimed at builders who want a complete lower receiver parts set in one package rather than sourcing each small component individually. Most parts are made from 8620 carbon steel and finished in black phosphate, giving the kit a straightforward, utilitarian setup for a standard build. Compatible with mil-spec AR-15 lowers, it covers the essential pins, springs, catches, and selector components required for assembly.
Why Hunters Choose the Rise Armament
Includes All
Working lower receiver components except
Compatible Mil-spec
Mil-spec AR-15 lowers
20-piece Kit
Covers essential lower assembly parts
Most Components
Use industry-standard 8620 carbon steel
Most Components
Feature a black phosphate finish
Key Features
- 20-piece lower parts kit for assembling a mil-spec AR-15 lower.
- Includes all working lower receiver components except the trigger.
- Compatible with mil-spec AR-15 lowers.
- Most components are made from 8620 carbon steel.
- Most components feature a black phosphate finish.
- Includes takedown, pivot, bolt catch, safety, buffer retainer, and magazine catch parts.
Best Used For
- AR-15 builders assembling a mil-spec lower and sourcing the missing lower receiver components
- Owners replacing worn lower parts while keeping the trigger selection separate
- Armorers or hobbyists wanting a 20-piece kit with the standard working components included
- Shooters building a compatible mil-spec AR-15 lower and preferring a parts-only package
Specifications
| Blade Finish | Black phosphate finish |
|---|---|
| Compatibility | mil-spec AR-15 lowers |
| Corrosion Resistance | Superior corrosion resistance |
| Includes | (2) Takedown/pivot pin detents; (1) Bolt catch spring; (1) Safety detent pin; (1) Bolt catch plunger; (1) Bolt catch roll pin; (1) Buffer retention pin; (2) 5.56 trigger pins; (1) Safety detent spring; (1) Spring for buffer retainer; (2) Springs for takedown/pivot detents; (1) Mag catch spring; (1) Bolt catch; (1) Safety selector; (1) Mag catch button; (1) Mag catch; (1) Receiver pivot pin; (1) Receiver takedown pin |
| Includes Trigger | No |
| Material | Most components are made from 8620 carbon steel |
| Piece Count | 20-piece |
Pros
- Includes all working lower receiver components except the trigger
- Compatible with mil-spec AR-15 lowers
- 20-piece kit covers essential lower assembly parts
- Most components use industry-standard 8620 carbon steel
- Most components feature a black phosphate finish
Considerations & Trade-offs
- This kit includes the lower receiver components only and does not include a trigger, so a separate trigger purchase is required to complete the lower.
- It is listed as compatible with mil-spec AR-15 lowers, so fitment should be checked against non-mil-spec or otherwise customized lowers.
- Most components are made from 8620 carbon steel with a black phosphate finish, but the description does not state that every part uses the same material or finish.
- The kit covers the working components of a lower receiver, but it is not a complete lower assembly on its own.
Suggested Comparisons
- AR-15 lower parts kit
- Mil-spec AR-15 lower receiver components
- AR-15 assembly parts kit
- AR-15 trigger kit
Suggested Accessories
- AR-15 trigger
- AR-15 buffer assembly
- AR-15 magazine
- AR-15 lower receiver
Frequently Asked Questions
What does this lower parts kit include?
It includes the working components for a mil-spec AR-15 lower receiver, minus the trigger. The listed parts include the bolt catch, safety selector, mag catch components, receiver pins, springs, detents, and related small parts.
Is a trigger included in this kit?
No. The product description states that the kit includes all necessary working components of a lower, minus the trigger.
Will this work with any AR-15 lower receiver?
It is described as compatible with mil-spec AR-15 lowers. Compatibility with non-mil-spec lowers is not stated.
What materials are used in the parts?
The description says most components are made from industry-standard 8620 carbon steel. It does not specify the material for every individual part.
Does the kit include any finish or corrosion protection?
Most components feature a black phosphate finish. The description also says this finish offers superior corrosion resistance, but no further performance details are provided.