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US ARMS Patriot II complete lower

U.S. Arms Patriot-15 II complete polymer AR-15 lower

Regular price $180.00 $136.99 Sale

U.S. Arms Patriot-15 II complete polymer AR-15 lower receiver w/ Steel trigger group, mil-spec aluminum buffer tube, micro M-4 adjustable stock, Upgraded DMR pistol grip


1.56 pounds complete

Industry proven indestructible polymer construction

Guaranteed lifetime manufacturer’s warranty


  • U.S. Arms Patriot-15® polymer lower receiver
  • Oversized Integrated Winter trigger guard
  • Updated GEN II billet design
  • All Mil-Spec lower parts kits are compatible with our Patriot-15 II® lower receiver
  • All Mil-Spec upper receivers are compatible with our Patriot-15 II® lower receiver
  • Marked as “multi-cal” for caliber designation
  • Scratch resistant, easy cleaning, and very low maintenance


  • Ergonomically styled DMR pistol grip
  • 6 position collapsible micro M-4 style carbine stock
  • 3.0 oz AR-15 carbine buffer w/ AR-15 carbine buffer spring
  • Mil-Spec aluminum carbine buffer tube w/ U.S. Arms® engraving
  • Steel end plate and castle nut
  • Steel bolt catch and buffer stop
  • Steel mil-spec 5.5-6.5 lb trigger group
  • Steel selector switch
  • Steel magazine release
  • Steel front and rear take down pins