5KU AB-8 RIS (1913) Folding Stock - Black View larger
Previous Next

5KU AB-8 RIS (1913) Folding Stock - Black

5KU AB-8 Folding Stock with RIS (1913) Mount in black.

AB-8 features a straight skeleton design made of aluminum with a removable buttplate.

For RIS stock ends (1913 / M1913), compatible with MCX / MPX, DA STRIBOG SP10 A3 and RIS adapters for M4, MP5, and AK platforms.

Lightweight aluminum skeleton design.

QD sling swivel sockets.

Folds to both sides.

Reinforced steel mounting base.

Another product variants

  • Black
    On stock
  • Black
    On stock
  • Black
    On stock

71,44 € tax incl.

Availability: In Stock at store

> 10 Items  

5KU34

: 5KU

Accessories

  • 675,93 € In Stock
    Free shipping

    : SIG AIR

    SIGAIR01-BK

    Long awaited AEG replica of the famous SIG MCX with trademarks. The replica is manufactured by VFC, a company that prides itself on looks, then it passes quality control by a direct offshoot of SIG. So you can expect an absolutely perfect visuals of the replica and an interior that runs like a Swiss watch. The excellent replica copies its counterpart very...

    675,93 €
    Out of stock
    Ask without obligation
    Pre-order with unknown delivery date.
  • 718,20 € In Stock
    Free shipping

    : SIG AIR

    SIGAIR07-BK

    SIG AIR MPX ProForce – a new level of airsoft! The dimensions and weight of the weapon are 1:1 with the real counterpart, and with precise CNC body processing, M-LOK handguard, and realistic controls, it offers the most authentic experience. Internal technology with VFC Avalon V2 gearbox with MOSFET ensures excellent performance. Its compact size...

    718,20 €
    In Stock
    Add to cart
  • 13,95 € In Stock

    : 5KU

    5KU42

    AEG M4 / AR15 Receiver End Plate with RIS / M1913 Stock Adapter by 5KU in black. Allows installation of stocks with RIS / 1913 (M1913) mounting interface (MCX, MPX, STRIBOG style). Can also be used without a stock for a compact M4 pistol setup. Easy installation on M4 AEG receiver (TM standard). Made from CNC-machined aluminum.

    13,95 €
    In Stock
    Add to cart
  • 13,95 € In Stock

    : 5KU

    5KU44

    Folding Receiver End Plate with RIS / M1913 Stock Adapter by 5KU in black. Designed for E&L airsoft AK rifles (folding stock versions). Allows installation of stocks with RIS / M1913 interface (MCX, MPX, STRIBOG style). Can also be used without a stock for a compact AK pistol setup. Easy installation. Made from CNC-machined aluminum.

    13,95 €
    In Stock
    Add to cart
  • 19,45 € In Stock

    : Lambda Defence

    LAMBDA06

    RIS / M1913 Stock Adapter for TM SAIGA-12K GBB by Raptor TWI in collaboration with Lambda Defence. Compatible with MCX-style stocks and other RIS / M1913 interface stocks. Durable aluminum construction with hard anodized finish. Mounts onto the original hinge pin of the folding stock. Designed for TM SAIGA-12K and SAIGA 12 SBS GBB.

    19,45 €
    In Stock
    Add to cart
  • 281,95 € In Stock
    Free shipping

    : Delta Armory

    DA-STG-A01-UPV-F-BLK

    Grand Power STRIBOG SP10A3 Alpha Upgrade by Delta Armory. Alpha variant with CNC upper and M-LOK handguard. Black lower and black upper with official markings. Full upgrade configuration with CNC reinforced internals. Eagle ETU unit ready for 11.1V batteries. V2 QSC gearbox (TM standard). Rotary M4 / M16 hop-up chamber.

    281,95 €
    In Stock
    Add to cart

5KU AB-8 Folding Stock

Looking for a lightweight yet durable folding stock that fits RIS (1913) stock mounts and folds to either side for easy transport or compact use? Need a QD sling mount for quick tactical attachment? The 5KU AB-8 stock combines stability, strength, and practicality in a clean, minimalist design. The aluminum skeleton frame keeps the stock lightweight and ergonomic, while the steel mounting base ensures a solid connection to any 1913 rail. Its ambidextrous folding mechanism allows folding to either side, making it ideal for both right- and left-handed users. A built-in QD socket provides a secure mounting point for a sling. Installation is simple and tool-friendly. The AB-8 is fully compatible with 5KU RIS adapters for M4, MP5, or AK rifles, opening new options for custom builds and tactical upgrades.

Key Features

  • Skeleton design:
    Lightweight frame with cutouts for optimal strength-to-weight ratio.

  • Dual-side folding:
    Can fold to the left or right for ultimate flexibility in use and storage.

  • Reinforced mount:
    Steel base ensures secure, precise fit on 1913 RIS rails.

  • Premium materials:
    Aluminum body and steel base — high durability with reduced weight.

  • QD sling compatibility:
    Integrated socket for quick-detach sling swivel.

  • Wide compatibility:
    Fits directly on 1913 stock mounts (SIG MCX, GP STRIBOG) or via 5KU RIS adapter for M4, MP5, AK, and others.

Technical Specifications

  • Mount type: RIS rail (1913)
  • Length: 204 mm
  • Width: 102 mm
  • Height: 20 mm
  • Weight: 260 g
  • Body material: Aluminum
  • Base material: Steel
  • Function: Dual-side folding
  • Color: Black

Package Includes

  • 5KU AB-8 Folding Stock
ColorBlack
Body/receiver materialMetal