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*WASHINGTON STATE RESIDENTS ONLY* LAST CALL - All MAGAZINES and IN-STORE firearms orders with Magazines over 10 rounds must be place by 11:59pm PST, June 28th, 2022

Rainier Arms Milspec Buffer Tube Kit

Buffer Kit

In stock
Only 4 left

Ships from Distribution Facility

Rainier Arms Milspec Buffer Tube Kit


The buffer tube we sell in our kits are made from 7075 aluminum with dry lube finish (100% milspec). Don't be fooled by other companies selling milspec tubes made from 6061. It might be milspec in size but it's not truly milspec. Buy from Rainier Arms and buy with confidence.



  • Mil Spec 6 Position Buffer Tube
  • End Plate
  • Castle Nut
  • Standard "H" Buffer 3.9oz
  • Carbine Buffer Spring for Collapsible Stock


More Information
Product Type Buffer Kit
Manufacturer Rainier Arms, LLC
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