TPS Arms Lower Parts Kit (with FCG)


This AR-15 lower parts kit includes everything needed to build a complete lower receiver assembly (excluding a pistol grip), using your existing stock assembly and lower receiver.  All parts meet or exceed standard military specifications and are made in the U.S.A.

Our kit includes premium parts such as our Enhanced Trigger Group, enhanced machined billet trigger guard and our premium billet machined magazine catch assembly.

All parts are manufactured in the USA.

Kit Contents: 

  • Bolt catch
  • Bolt catch buffer
  • Bolt catch roll pin
  • Bolt catch spring
  • Buffer retainer pin
  • Buffer retainer spring
  • Disconnector
  • Disconnector spring
  • Hammer
  • Hammer pin
  • Hammer spring
  • Magazine catch
  • Magazine catch button
  • Magazine catch spring
  • Pistol grip lock washer
  • Pistol grip screw
  • Pivot pin
  • Pivot pin detent
  • Pivot pin detent spring
  • Selector
  • Selector detent
  • Selector spring
  • Takedown pin
  • Takedown pin detent
  • Takedown pin detent spring
  • Trigger
  • Trigger guard
  • Trigger guard roll pins (front and rear)
  • Trigger pin
  • Trigger spring
Limited lifetime warranty on parts of this kit, see warranty section of website for details.