Seekins Precision Builders Kit LPK 5.56mm - Black

Building an AR-15 lower receiver from scratch requires more than just the receiver itself—you need all the small parts, springs, and pins that bring it to life. The Seekins Precision Builders Kit LPK for 5.56mm AR platforms includes the full complement of Seekins Precision-manufactured lower parts you need for assembly. This lower parts kit delivers quality components engineered to work together, so you're not hunting down individual pieces from different suppliers or compromising on fit and finish. If you're building a rifle, completing a project, or simply want to stock quality AR components, this kit gives you everything except the trigger—leaving that critical choice entirely to you.

Seekins Precision has built a reputation for attention to detail and American manufacturing, and that carries through to every part in this kit. Whether you're a seasoned builder or tackling your first lower, having matched, quality components from a single maker means fewer headaches during assembly and more confidence in the final result. The black finish integrates cleanly with most builds and pairs well with any upper receiver, handguard, or furniture you choose.

Since the trigger is not included, you have complete freedom to select the exact trigger that matches your shooting style and budget—match it to a quality 2-stage for precision work, or go with a crisp single-stage for duty or sport. That flexibility, combined with Seekins' reputation for precision, makes this kit a solid foundation for any 5.56mm AR project.

Key Features

• Complete Seekins Precision-manufactured lower parts kit
• Includes all pins and springs needed for lower receiver assembly
• Trigger not included—choose your own for complete customization
• Black finish
• Designed for 5.56mm AR-15 platforms
• Quality American-made components

Frequently Asked Questions

Does this lower parts kit include a trigger?

No. The Seekins Precision Builders Kit includes all other lower parts, pins, and springs needed for assembly, but the trigger is not included. This lets you select the exact trigger that suits your needs and budget.

What do I need to complete a lower receiver with this kit?

You'll need a lower receiver (stripped or completed by an FFL in your state), this lower parts kit, a trigger, and basic assembly tools. The kit provides all internal parts and hardware except the trigger.

What calibers and AR platforms is this kit compatible with?

This kit is designed for 5.56mm AR-15 platforms and lowers configured for that caliber and format.

Are these parts made by Seekins Precision?

Yes. All components in this kit are Seekins Precision-manufactured parts, ensuring consistent quality and fit across the assembly.