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Please send your parts and a copy of your invoice to:

Rainier Arms LLC 
ATTN: Armorers 
4611 E 31st St S

Wichita, KS 67210


Once your Form 1 has been approved, the ATF requires that your information be engraved onto the firearm in a visible location. We use a laser to engrave all of the appropriate information to the appropriate depth to stay in compliance with ATF regulations


Parts Required:

  • Receiver
  • Copy of Form 1
  • Completed Serialized item form
  • Copy of Driver's license


Lower Receiver Customer Info Form

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