Faxon AR-15 Lower Parts Kit | Minus Trigger Guard

The Faxon AR-15 Lower Parts Kit, minus trigger guard, provides everything needed to complete a standard AR-15 lower receiver except the trigger guard. Designed for builders who want reliability without compromise, this kit delivers precision-machined components engineered for consistent function and long-term durability.

This kit is the smart choice for builders planning an upgraded trigger guard. It leaves that one part open so you can install the billet or oversized guard you prefer.

What the Faxon AR-15 Lower Parts Kit Is and Who It Is For

This is a Mil-Spec lower parts kit from Faxon Firearms, built for shooters assembling a lower from the ground up. It includes the small parts you need to finish the receiver, minus the trigger guard.

It fits custom builders who want to add an enhanced, oversized, or billet trigger guard of their own choosing. Anyone completing a fresh lower will appreciate the complete set of Mil-Spec components.

By omitting the trigger guard, the kit gives you flexibility for ergonomics, aesthetics, or receiver design.

Key Features

The kit is built around Mil-Spec geometry and dependable function.

• Completes a standard AR-15 lower minus the trigger guard
• Precision-machined components for consistent function
• Mil-Spec dimensional standards for broad compatibility
• Room to install an enhanced or billet trigger guard
• Works with forged and billet lower receivers
• Durable materials engineered for long-term use

Specifications and Build

The Faxon AR-15 Lower Parts Kit is manufactured to Mil-Spec AR-15 dimensional standards, with steel components engineered for reliable function. That adherence to spec ensures compatibility with a wide range of forged and billet lower receivers.

The result is smooth installation, proper fitment, and dependable operation across many build types. Each part is designed to work together as a complete fire-control and small-parts package.

Leaving out the trigger guard is a deliberate choice that opens the door to the enhanced guard of your choice.

Practical Use, Care, and Compatibility

Installation follows standard AR-15 lower assembly, so plan on the usual detents, springs, and pins. Take your time seating the small parts, and the kit rewards you with a properly functioning lower.

Care is limited to keeping the fire-control components clean and lightly lubricated during normal service. The Mil-Spec steel construction handles hard use with basic maintenance.

Pick your trigger guard and other components from our parts and upgrades collection. The Faxon AR-15 Lower Parts Kit pairs naturally with a billet trigger guard and an enhanced trigger to finish the build your way.

Build It Your Way

Leaving the trigger guard out of a lower parts kit is a deliberate, builder-friendly choice. It lets you spec exactly the guard you want rather than discarding a standard one.

The rest of the kit covers the small parts that make a lower function, all held to Mil-Spec dimensions for broad compatibility. That means smooth assembly on forged and billet receivers alike.

For first-time builders, a complete kit takes the guesswork out of sourcing individual detents, springs, and pins. For experienced builders, it is a reliable base to customize.

Add your chosen trigger guard and enhanced components, and you have a lower tailored to your preferences.

Getting the Most From It

Assembly follows standard AR-15 lower procedures, so plan for the usual detents, springs, and pins. Take your time seating the small parts for smooth, reliable function.

Keep the fire-control components clean and lightly lubricated during normal service. The Mil-Spec steel construction handles hard use with basic maintenance.

This kit ships direct where state and local law allows, arriving ready to bring your lower to life.

Pair it with your chosen trigger guard and any enhanced components to finish the build exactly your way.

For first-time and seasoned builders alike, it is a dependable foundation with room to personalize.

For a reliable foundation with room to customize, the Faxon AR-15 Lower Parts Kit is the way to go. Ships direct to your door, no FFL required.