308 80% Polymer Lower and Jig


After two years of planning, design, engineering, and testing, polymor 80 has introduced the industry’s first reinforced polymer receiver designed for the DPMS styled .308 in an 80% format.Now you can buiuld your own Ar-10 from this polymer lower.


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Category: Tags: , , , Product ID: 2062


  • Industrial strength, finest reinforced polymer material….nothing held back.
  • Feel the difference the second you pick it up.
  • Rock solid frame, injection molded from a fully automated system that was two years in the making.

The .308 80% Lower Receiver  Design features:


  • Unique reinforced polymer design with solid core design
  • ATF compliant design
  • Beefed up buffer tube ring and ribbing across the entire upper surface area.
  • No-thread design on pistol grip area.
  • Stiffened magwell, ultra-light design.
  • See product page for additional parts list
  • Start your new 308 project now. Rifle Ideas:
  • Add an ultra-light 308 rifle to your armory
  • Superior accuracy varmint or hunting rifle
  • Hydrodip the receiver to customize
  • Competition rifle
  • Build a zombie gun, just in case
  • Prepper rifle build and stow with food

Is it legal?
YES! The 308 unit is well within the defined parameters of a “reciever blank” defined by the ATF and therefore has not yet reached a stage of manufacture that meets the definition of firearm frame or receiver found in the Gun Control Act of 1968 (GCA).

Operations still left to be performed are:

  • Machining of the trigger slot
  • machining of the trigger group/function cavity
  • Drilling of the 2 pin holes.
  • Drilling of the safety selector hole
P80-308 Kit List: Each Lower and Jig Kit comes with the following:
Lower Description ITEM Qty per Lower
308 Lower Receiver W308 Lower 1
Pistol Grip Nut 3/8in 1
Pistol Grip Screw 1.5in 1
Jig Description ITEM Qty per Lower
Warrhogg .308 Jig J100 1
End-Mill Bit with Laser Etched Depth Mark 7/16″ end mill bit 1
Drill Bit, Safety Selector Switch Hole 3/8″ drill bit 1
Drill Bit, Pin Holes for Trigger & Hammer 5/32″ drill bit 1
Drill Bit, for Trigger Hole 5/16″ drill bit 1
Trigger Guide TG100 1
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