Basic Tools Needed To Assemble an AR 15 Upper Receiver

  • Bench mounted vice
  • Upper receiver block
  • Torque wrench (FT/LBS)
  • Allen wrench set 3/32 – 3/8 in.
  • ¾ Open end wrench (wrench to match selected muzzle device)
  • Heat gun or hair dryer (used for upper assembly with an interference fit between barrel and receiver)
  • Wrench that mates with the barrel nut you plan to install; this can vary depending on the company

For more information on upper assembly, check out our FAQs or give us a call!

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