The Tiger Rock Carbine Buffer Tube Kit is the perfect way to finish out your lower receiver without breaking the budget! The lightweight and durable 6061-T6 aluminum 6-position receiver extension is proper Mil-Spec dimensions to accept a wide variety of after market stocks. A coated carbine spring and 3oz buffer help ensure smooth and reliable function.

Kit includes:

  • End plate
  • Castle nut
  • Buffer tube
  • Carbine spring
  • 3 ounce buffer


  • Buffer tube machined from 6061 aluminum
  • For 6-position adjustable carbine stocks
  • Mil-Spec outside dimensions

Founded in 2011, Tiger Rock Inc is a smart choice for a wide variety of superior quality sporting/firearms accessories.

Tiger Rock Carbine Buffer Tube Kit