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A3 Tactical Stribog Lower Receiver - Scorpion Magazine (LRBHO)

Lower Receiver

In stock

A3 Tactical Stribog Lower Receiver - Scorpion Magazine (LRBHO)

Rainier Arms Exclusive

This is an all new lower receiver for the Grand Power Stribog. It is designed to use the popular and well established AR fire control group and AR grips. The AR features bring almost limitless possibilities to your Stribog platform, allowing the user to customize the Stribog to suit their individual tastes and shooting preferences.


Additionally, this receiver uses the popular CZ Scorpion magazine instead of the OE Stribog magazine. The improved magwell angle and curved magazine has an inherent advantage over straight mags and has been proven to provide more consistent feeding, as well as better tolerance to various brands/types of ammo. 


Lower receiver ships complete with new 304 stainless steel Bolt-release lever, new ILWT HK-style takedown pins, new 1/4" grip screw, and selector detent with spring.



  • Injection molded from high-density 35% glass filled Zytel polymer
  • Compatible with OE Scorpion, Magpul, PSA, ETS, and Manticore magazines
  • Compatible with Magpul, A3 Tactical, Shooters Element, TandemKross, and Gearhead Works Scorpion-type mag releases. Not compatible with HBI or Strike Industries mag releases.
  • Features Last Round Bolt Hold Open (LRBHO) with new bolt hold lever (included)
  • Machined thread insert for AR grips that allows full-size 1/4" grip screw
  • Compatible with drop-in AR triggers (hammer width must be .265" or narrower)
  • Compatible with most AR safety selectors
  • Compatible with most AR anti-rotation trigger pins
  • Uses any AR-based grip
  • Large flared magwell with funneled entrance for quick mag changes
  • Oversized trigger-guard
  • ILWT HK-style takedown pins included
  • Compatible with both SPA1 and SPA3 models


NOTE: A3 Tactical recommends a drop-in trigger for this application. Most Mil-spec triggers have a hammer width that is too wide for the Stribog bolt. Make sure the width of the hammer does not exceed .265" and please use anti-rotation pins if not using a drop-in trigger. This will eliminate the risk of "oblonging" the trigger pin holes in the receiver.


NOTE: While some firearms have serialized lower receivers, the Stribog's upper is the registered receiver. This product is not a regulated or controlled item and is considered an accessory only. This item does not need to be shipped to an FFL.


NOTE: This product is not compatible with Magpul drum magazines. 

More Information
Product Type Lower Receiver
Manufacturer A3 Tactical

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