Rainier Arms Overthrow Complete Lower Receiver

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In stock

Rainier Arms Overthrow Complete Lower Receiver

As low as $499.99

Rainier Arms Overthrow Complete Lower.

Designed and produced by Sharps Bros.

  • An open mag well helmet design, with battle worn dents, sword gashes and crack lines.  
  • Machined top to bottom from 7075-T6 aluminum, a peak-strength corrosion-resistant aluminum alloy
  • A hard coat anodize Black finish per MIL-A-8625, the anodizing model for model for most military and aerospace products
  • Full compatibility with all mil-spec internal parts
  • Full compatibility with all other aftermarket mil-spec upper receivers
  • Full compatibility with GI standard issue magazines as well as PMags
  • Multi caliber mark



  • Overthrow Lower
  • H1 Buffer
  • Rainier Arms Selector Switch - Standard / Short (45 Degree)
  • ALG QMS trigger
  • Fortis QD End Plate
  • Magpul Grip



FFL Required Before Shipping.

Please have your dealer email their license to [email protected] or they can also fax it in. Please give us a few days to process the information.

More Information
Manufacturer Rainier Arms, LLC
Finish No
Barrel Length No
Caliber No
Configuration No
Option No
Gas Length No
Height No
Rail Length No
Mount No
Profile No
Reticle No
Co Witness No
Size No
Item Category (only for Taxify) No