The Seekins Precision Enhanced Builder’s Kit (brand part number 0011510063) supplies the small parts, pins, and springs needed to finish assembling an AR-15 lower receiver in one package, saving a builder from tracking down a dozen individual components. It includes an enhanced bolt catch assembly, a full safety selector set, magazine release hardware, a trigger guard, and Seekins Precision’s own takedown pins, which are only available in this kit. It’s built for anyone assembling a lower from a stripped receiver rather than piecing parts together from multiple vendors.

Key Specifications

• Includes an enhanced bolt catch assembly with roll pin, spring, and plunger.
• Includes a buffer retainer pin and spring.
• Includes a mag release button, mag catch, and mag catch spring.
• Includes a 60/90-degree safety selector barrel with both short and long selector levers.
• Includes a selector detent and spring.
• Includes a trigger guard and trigger guard roll pin.
• Includes Seekins Precision takedown pins (pivot and rear), exclusive to this kit.
• Includes takedown pin detents and springs for both pins.
• Includes hex set screws and SHCS hex hardware for assembly.
• Finished in black.

Frequently Asked Questions

Does this kit include the takedown pins? Yes, and Seekins Precision’s takedown pins are only available as part of this kit.

Does it include the safety selector? Yes, it includes a 60/90-degree selector barrel with both short and long levers.

Is this a complete lower parts kit? It covers the small parts, pins, and springs for finishing a lower build; a separate trigger and grip are still needed.

Buy the Seekins Precision Enhanced Builder’s Kit for AR-15 Lower Receiver, Black

Sourcing a dozen small pins and springs one at a time is the most tedious part of an AR-15 build, and this Seekins Precision kit puts them all in one box. Browse the rest of our AR lower parts kits selection and order from our Lubbock, Texas gun shop — we’ll get it moving as soon as it’s ready to ship.