• HK416 elongated steel castle nut
  • HK416 A5 upper receiver
  • Continuous picatinny rail interface between upper receiver and handguard
  • M-LOK interface with integral ambi QD cups
  • Suppressor-ready concentric 1/2X28 threads
  • Match rifle cold-hammer-forged barrel
  • Ambidextrous safety lever, bolt release and magazine release
  • Ambi safety selector with 45-degree throw
  • Updated angled magazine well for reliable feeding
  • HK416 2-position adjustable gas block
  • Single point QD end plate