Pistol & rifle build parts
AR-15 Lower Parts Kit, image 1 of 1

AR-15 Lower Parts Kit

Mil-spec LPK with a billet trigger guard

A complete mil-spec parts kit for a stripped AR-15 lower, made in the US. The hammer and trigger are investment cast rather than MIM, with polished sear surfaces for a clean break around 6 to 7 lb. The trigger guard is machined billet aluminum instead of a stamped part, so it's stronger and goes in without the roll pin that can crack a receiver ear. Every spring is black oxide coated to resist corrosion.

From $99.99
AR-15 Lower Parts Kit—
$99.99

Spec sheet

Fits
Mil-spec AR-15 stripped lower receivers
Caliber
5.56 NATO / .223 Rem
Material
Steel fire control group, billet aluminum trigger guard
Finish
Black oxide springs
Made in
USA
Ship weight
1 lb
Package
10 × 6 × 4 in

In the box

  • Hammer, trigger, and disconnector with springs and pins
  • 90-degree safety selector with detent and spring
  • Bolt catch, plunger, spring, and roll pin
  • Magazine catch, button, and spring
  • Pivot and takedown pins with detents and springs
  • Buffer retainer and spring
  • Billet aluminum trigger guard
  • A2 pistol grip with screw and lock washer

Not included

  • Stripped lower receiver
  • Buffer tube, buffer, spring, castle nut, and end plate
  • Stock or brace

Shipping & returns