| A full set of mil-spec components for an all-in-one completion. Proudly Made in the USA. |
Stage 5 AR15 Complete Lower Parts Kit With Phosphate Internals
The Stage 5 AR15 Lower Parts Kit gathers a full set of mil-spec components for completing a lower assembly in a single purchase. With phosphate-coated internals and parts made in the USA, this kit serves builders finishing a stripped AR-15 lower receiver as well as gunsmiths stocking the bench with springs, pins, and detents.
Because lower parts kits include trigger group components, confirm the contents match your specific build and intended controls before assembly. If you only need select pieces, compare the Stage 3 kit without a fire control group or browse standalone trigger parts.
As with any AR component, verify compatibility with your receiver and additional parts, and check local requirements before assembling any firearm.
Frequently Asked Questions
This is a complete kit gathering the full set of mil-spec components needed to finish a lower assembly in one purchase, including trigger group components, springs, pins, and detents. Because the contents cover trigger group parts, confirm they match your specific build and intended controls before assembly.
Yes. The kit contains mil-spec components with phosphate-coated internals, and the parts are made in the USA. It's intended for builders finishing a stripped AR-15 lower receiver as well as gunsmiths stocking springs, pins, and detents on the bench.
It's built for completing a stripped AR-15 lower receiver. As with any AR component, verify compatibility with your receiver and additional parts before assembly, and confirm the kit's contents match your specific build and intended controls. You can browse stripped receivers under Lower Kits.
If you only need select pieces, consider the Stage 3 kit without a fire control group, or browse standalone trigger parts. The Stage 5 kit is the all-in-one complete option covering every part required for a full lower assembly.
Orders ship in 2-3 business days, and free shipping is available on qualifying orders. The kit is listed as in stock, and a 30-day money-back guarantee applies to your purchase. Reach out through Contact Us if you have questions before ordering.