M16 Fire Control Group — Full-Auto / 3-Position Mil-Spec FCG

Upgrade or restore your M16 lower receiver with this OEM-quality M16 Fire Control Group. Machined and finished to Mil-Spec tolerances, this complete FCG kit contains the hammer, trigger, disconnector, safety selector, and auto sear with pin — everything needed for 3-position (Safe / Semi / Full-Auto) operation in compliant, legally registered platforms. These components are manufactured to rugged military standards and finished for long life under hard use.

Whether you’re maintaining a registered select-fire rifle, refurbishing a contract part, or replacing worn internal components, the Luth-AR M16 FCG gives you reliable engagement, crisp reset, and mil-grade materials and heat treatment. Parts are commonly finished with corrosion-resistant treatments and supplied as a complete kit for straightforward parts replacement by a qualified gunsmith.

Important legal note: This product contains select-fire components intended for use only in legally registered full-auto or select-fire firearms and/or in accordance with all federal, state and local laws. Pathfinder Militaria does not provide legal advice — check ATF and state rules and consult a qualified gunsmith or attorney for compliance questions before purchase. (We will assist with legal transfer & NFA services where appropriate.)

Key Specifications (copy/paste list)

• Includes: Hammer, Trigger, Disconnector, Safety Selector, Auto Sear with Pin.

• Operation: 3-position (Safe / Semi / Full-Auto) configuration.
• Manufacture standard: Mil-Spec / OEM military quality components.
• Finish: Corrosion-resistant phosphate / mil-spec finishes commonly used on FCG components.
• Compatibility: M16 / AR-15 platform lower receivers built to mil-spec dimensions (verify fit & legal status prior to install).
• Made in: U.S.A. (contract or surplus military OEM parts where specified).

• Mil-spec reliability for service use, maintenance, or parts replacement.

• Complete kit — no hunting for missing small springs or pins.

• Durable finish reduces corrosion and wear, extending service life.

• Ideal for registered select-fire platforms or armory refurb projects (legal compliance required).

• These parts can’t be shipped to “ban” states!
  Shipping Restrictions: California, Washington, Illinois, and New York