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  • Home
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  • STRIBOG LOWER RECEIVER
  • STRIBOG LOWER RECEIVER
  • STRIBOG LOWER RECEIVER
  • STRIBOG LOWER RECEIVER
  • STRIBOG LOWER RECEIVER
  • STRIBOG LOWER RECEIVER
  • STRIBOG LOWER RECEIVER
  • STRIBOG LOWER RECEIVER
  • STRIBOG LOWER RECEIVER
  • STRIBOG LOWER RECEIVER
  • STRIBOG LOWER RECEIVER
  • STRIBOG LOWER RECEIVER
  • STRIBOG LOWER RECEIVER STRIBOG LOWER RECEIVER STRIBOG LOWER RECEIVER STRIBOG LOWER RECEIVER STRIBOG LOWER RECEIVER STRIBOG LOWER RECEIVER STRIBOG LOWER RECEIVER STRIBOG LOWER RECEIVER STRIBOG LOWER RECEIVER STRIBOG LOWER RECEIVER STRIBOG LOWER RECEIVER

    STRIBOG LOWER RECEIVER

    A3 INDUSTRIES

    MSRP:
    Now: $199.95
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    SKU:
    REC-100
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    • XENO TRIAD - REDUCED ANGLE AR-COMPATIBLE GRIP

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    • Overview

    Product Description

    COMING BACK SOON! After refining a few issues with the mold we are planning to re-release our Stribog lowers Fall 2025

    NOTE: ONLY COMPATIBLE WITH 9MM STRIBOG'S

    A3 INDUSTRIES LOWER RECEIVER

    This is an all new lower receiver for the Grand Power Stribog, designed to use the popular and well established AR fire control group and grips. These 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. 
     
    NOTE: Not recommended for use with aftermarket buffer kits or short-stroke kits
    NOTE: Single-stage triggers only. 2-stage triggers will not reset properly in the Stribog
     
    Lower receivers ship complete with a hybrid machined aluminum/hardened steel bolt release lever, A3 Industries TRI-Lever polymer mag release, new bearing detent takedown pins, new 1/4" grip screw, and a selector detent with spring. Receiver is manufactured from injection molded Zytel polymer with 30% glass reinforcement. Aluminum mag release optionally available.
     

    A3 INDUSTRIES BOLT RELEASE LEVERS:
    -As of Fall 2025 every lower receiver now ships with our upgraded machined aluminum bolt release lever. These levers are machined from 7075 aluminum and then hard coated low-gloss black. They have a hardened steel insert at the bolt interface and textured thumb levers.

    MAG RELEASES:
    -By default, our lower receiver ships with an A3 Industries Polymer TRI-Lever mag release. These are injection molded from Zytel Polymer with 30% fiber reinforcement. 
    -This item can also be upgraded to our aluminum mag release. These are machined from 6061 and anodized low-gloss black.
     
    MAGAZINES AVAILABLE:
     
    MAGPUL 35-ROUND MAGAZINE
    The PMAG 35 EV9 is a lightweight, 35-round, 9x19mm CZ Scorpion EVO 3-compatible magazine. The PMAG 35 EV9 provides optimal round stack geometry, giving the large format pistol, PCC, and SMG market a pistol caliber magazine with Magpul reliability and increased magazine capacity at a competitive price point.
     
    PSA 35-ROUND MAGAZINE
    Featuring a “PMX” polymer matrix construction the PSA 35 round 9mm series magazines, combine an engineered thermoplastic magazine body with inserted stainless-steel feed-lips. Providing users with improved performance and reliability.

    Features:
    Impact & chemical resistance engineered thermoplastic body.
    Insert molded 17-4SS feed-lips
    Anti-tilt self-lubricating follower.
    Impact resistant floorplate with and elastomeric strike plate.

    Materials:
    Magazine body – Custom compounded engineered Nylon
    Follower – Delrin
    Floorplate – Super tough Nylon
    Floorplate lock – Super tough Nylon
    Strike-plate – Thermoplastic Elastomer
    Feed-lips- 17-4 Stainless Steel

    -----------------------------------------------------------------------------------------------------------------------------------------

    MAGAZINE INFO and COMPATIBILITY:

    The biggest issue with Scorpion magazines in a Stribog is the Stribog's sensitivity to mag position, angle, and movement. When designing the lower, we tested various magwell angles until we found the angle that fed the most consistently. Mag height actually is even more important for feeding properly. On the Scorpion the ejector is higher (than the Stribog) and the base of the bolt has more clearance for the magazine. Everything is very forgiving on the Scorpion which is why they run so well with all of the different magazine options, even though the magazine dimensions vary drastically. 

    In the image to the right, you can see the varying differences between 3 brands of magazines. The feed lips all have different heights, and the taller ones can interfere with the Stribog ejector. 

    Ideally you want your magazine butted right up against the ejector, but not binding or dragging on the bolt. If you have to smack the magazine for the mag catch to seat you will have feed issues. The only way to guarantee ideal fit is to file the top of the feed lips until they fit this way. The Magpuls have the tallest feed lips and, while they may be the best Scorpion magazine, they are the most prone to have issues unless they are filed.

    Below is a chart of Scorpion magazines with the PROS and CONS of each:

    BRAND/STYLE PROS CONS
    MAGPUL 35 ROUND
    • Low price
    • High quality
    • Good fit in magwell
    • Tallest feed lips usually requires filing to fit and function properly
    ETS 40 ROUND
    • Highest capacity
    • Good fit in magwell
    • Generally will not feed last 1 or 2 rounds when used in the Stribog
    PSA 35 ROUND
    • Low price
    • High quality
    • Good fit in magwell
    • None
    MANTICORE 32 ROUND
    • Steel feed lips
    • Low price
    • Good fit in magwell
    • None
    CZ FACTORY MAGS
    • Low price
    • Loose fit in magwell
    • Hit or miss functionality due to various changes throughout the years
    MAGPUL, F5, PROMAG 50 ROUND DRUMS
    • None
    • Not compatible

     

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