Brownells 75th Anniversary - A Shooting Heritage
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Brownells has paired together the Polymer 80 Polymer 80% Lower Receiver and the Full Metal Tactical Lower Parts Kit to help the DIY'er along the way!

Polymer 80% Lower Receiver and Complete Jig, everything you need to get your own build started. Unique reinforced polymer design allows for a great project build. Solid core design and beefed up buffer tube area ensure this lower will last. Improved Jig system provides insert for trigger hole drilling, and also includes necessary end mill bits.
 
Kit Includes: AR-15 80% Lower, Set Screw Bolt Catch Pin, Dowel Pin for Bolt Catch, Pistol Grip Nut, Pistol Grip Screw, Allen Wrench, AR-15 Jig, End Mill for fire control pocket, Drill Bit for safety selector, Drill Bit for trigger & hammer pin holes, Drill Bit for pin holes & trigger hole. Jig screws are not included.

The Full Metal Tactical Lower Parts Kit is ready for installation once you get your lower receiver finished!

The standard AR-15 components included are:

  • Hammer
  • Hammer Pin
  • Hammer Spring
  • Trigger
  • Trigger Pin
  • Trigger Spring
  • Trigger Guard
  • Trigger Guard Pin
  • Disconnector
  • Disconnector Pin
  • Safety Selector
  • Safety Selector Detent
  • Safety Selector Spring
  • Pistol Grip
  • Pistol Grip Screw
  • Pistol Grip Lock Washer
  • Bolt Catch
  • Bolt Catch Spring
  • Bolt Catch Buffer
  • Bolt Catch Roll Pin
  • Take Down Pin
  • Pivot Pin
  • Take down & Pivot Detent (x2)
  • Take down & Pivot Spring (x2)
  • Magazine Catch
  • Magazine Catch Button
  • Magazine Catch Spring
  • Buffer Retaining Pin
  • Buffer Retaining Pin Spring

Returns will not be accepted once the receiver is modified in any way.

BROWNELLS - AR-15 80% LOWER RECEIVER W/ JIG & LOWER PARTS KIT

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