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Spike's Tactical Enhanced Lower Parts Kit for .223/5.56

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Spike's Tactical's Enhanced Lower Parts Kit for .223/5.56 AR rifles includes upgraded internals, coated with nickel boron for smoother operation and less fouling. The hammer and trigger pins have been replaced by anti-roll pins to make sure your fire control group never suffers a failure.

What's Included

  • Trigger Group (Nickel Boron Coated)
  • Trigger Guard
  • Black Ergo Grip
  • Black KNS Anti Rotation Gen 2 Mod 2
  • Ambi Safety (Left/right reversible)
  • Bolt Catch, Spring, Roll Pin, and Plunger
  • Magazine Catch, Spring and Button
  • Pivot and Takedown Pin w/ Detent and Springs
  • Buffer Retainer Spring and Plunger
  • Grip Screw and Star Washer

Pair This LPK With a Buffer Kit

This lower parts kit includes the internal components necessary to assemble your stripped lower receiver. You will also need a buffer assembly to make the lower functional.

Buy a Buffer Kit here.

Want to hit the range faster? Finish your custom, upgraded AR-15 with one of our quality barreled upper assemblies. They're functional out of the box and include a mil-spec bolt carrier group and charging handle.

Buy a Barreled Upper here.



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Shipping Restrictions

Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or "assault weapons" (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily. only ships within the United States. Federal legislation dictates we cannot ship our products internationally.

Spike's Tactical

We are a national retailer of individual components and not all products depicted on this website are legal in every state. Shipping of various products found on this website are prohibited to some states (such as California, Connecticut, District of Columbia, Hawaii, New Jersey, New York, Rhode Island, and Washington). The information, pictures, text or products presented on this website are not a representation by us, and should not be understood by you, that any product or completed firearm is legal to assemble or own in your state of residence. We encourage each and every builder to perform their own research about the state and federal laws that apply to them. It is your responsibility to understand the law and we encourage you to consult with an attorney or your local ATF representative.