Buy AR-15 rifle parts. Rainier Arms has one of the best selections of quality AR-15 parts and AR-15 accessories online. Find uppers, lowers, stocks, barrels, triggers and more parts for your AR-15 rifle.

  1. CMT Tactical UHPR MOD 3 HDX QUAD RAIL - 15"
    Special Price $169.99 Regular Price $215.00
  2. CMC Trigger 2 Stage Curve 1/3
    Special Price $169.99 Regular Price $210.00
  3. V Seven 7075 Billet EX Enlightened AR15 Lower
    Special Price $174.99 Regular Price $241.53
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