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AR15 Lower Parts Kit with Stainless Steel Hammer and Trigger



With an upgraded trigger assembly that truly looks and feels match-grade (coupled with an awesome price tag), the Anderson AR-15 Stainless Lower Parts Kit is tough to beat. This mil-spec LPK’s perfectly tuned with a 4.5-lb trigger, A2 pistol grip, and precision machine work.

Polished Internals, Perfect Trigger Pull

Just because this kit’s affordable does not mean it cuts any corners. Anderson took the time to precisely cut and polish the sear, hammer hook, and disconnector to ensure the trigger requires no break-in and suffer no creep, take-up, or over-travel. Thanks to perfect tolerances, each roll pin, spring and detent installs precisely.

Complete Lower Parts Kit with Pistol Grip

The Anderson Stainless Parts Kit includes all components required for assembling your AR-15 stripped lower receiver:


  • Bolt Catch
  • Bolt Catch Plunger
  • Bolt Catch Roll Pin
  • Bolt Catch Spring
  • Buffer Retainer
  • Buffer Retainer Spring
  • Disconnector
  • Disconnect Spring
  • Stainless Steel Hammer
  • Hammer Pin
  • Hammer Spring
  • Magazine Catch
  • Magazine Catch Button
  • Magazine Catch Spring
  • Pistol Grip (A2 style)
  • Pistol Grip Lock Washer
  • Pistol Grip Screw
  • Pivot Pin
  • Pivot Pin Detent
  • Pivot Pin Detent Spring
  • Selector
  • Selector Detent
  •  Selector Detent Spring
  • Takedown Pin
  • Takedown Pin Detent
  • Takedown Pin
  • Detent Spring
  • Stainless Steel Trigger
  • Trigger Guard
  • Trigger Guard Roll Pin
  • Trigger Pin
  • Trigger Spring
Made in the USA  Lifetime Warranty

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.

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.