| A high-quality set of internals for the methodical builder. Proudly Made in the USA. |
Stage 2 AR15 Lower Parts Kit With Phosphate-Coated Mil-Spec Internals
This Stage 2 AR15 lower parts kit gives methodical builders a set of mil-spec internals at a competitive price. Every component is phosphate-coated for durability and corrosion resistance, and the kit is proudly made in the USA. It's a practical choice for completing an AR-15 lower receiver build, whether you're assembling your first platform or working through multiple lowers in the shop.
As with any kit, verify compatibility with your specific receiver and intended configuration before assembly. Builders comparing options can review the Stage 3 kit without fire control group or the Stage 5 complete kit to match your trigger preferences and build stage.
Browse the full Lower Kits collection for additional configurations, and keep the correct punches and spring tools on hand. Consider a spare kit for future builds or replacement parts.
Specifications
| Platform | AR-15 lower receiver |
| Kit Type | Stage 2 Assembler's Special Lower Parts Kit |
| Finish | Phosphate-coated |
| Specification | Mil-Spec dimensions |
| Country of Origin | Made in the USA |
| Bolt Catch | Included |
| Bolt Catch Detent | Included |
| Selector | Included |
| Selector Detent | Included |
| Magazine Catch Assembly | Included |
| Fire Control Group Pins | 2 |
| Takedown Pin | Included |
| Pivot Pin | Included |
| Takedown Pin/Pivot Pin Detents | 2 |
| Buffer Retainer Pin | Included |
| Spring Kit | Complete |
| Not Included | Fire control group, trigger guard, grip |
Frequently Asked Questions
The kit includes the bolt catch and detent, selector and detent, magazine catch assembly, two fire control group pins, takedown pin, pivot pin, two takedown/pivot pin detents, buffer retainer pin, and a complete spring kit. It does not include the fire control group, trigger guard, or grip.
No. This Stage 2 kit does not include the fire control group, trigger guard, or grip. If you want a kit with those parts, review the Stage 5 complete kit or compare the Stage 3 kit.
Yes. The kit is built to mil-spec dimensions with phosphate-coated components for durability and corrosion resistance. It is proudly made in the USA. As with any kit, verify compatibility with your specific receiver and intended configuration before assembly.
The kit is intended for AR-15 lower receiver builds and is made to mil-spec dimensions. Before assembly, confirm compatibility with your specific receiver and intended configuration. You can also browse the full Lower Kits collection for other configurations.
Every component in the kit is phosphate-coated for durability and corrosion resistance. The specification is mil-spec dimensions, and the parts are made in the USA, making it a practical set of internals for completing a lower build.
Orders ship in 2-3 business days, and free shipping is available on qualifying orders. The product is also backed by a 30-day money-back guarantee. Consider a spare kit for future builds or replacement parts while you're ordering.