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Australian supplier of shooting optics, rifle scopes and accessories 


The AAIS Bottom Rail, Part number BT20-B consists of a single piece 1913 rail that can be attached to the underside of the AAIS BT19. This rail allows for a multitude of options including mounting of the BT10 and BT10-LW17 to the AAIS.

The rail is made from 6061T6 Aluminum with a type II hard coat anodize and utilise the fasteners supplied with the BT19 .

Items received in the box

  • 1 x BT20 41mm bottom rail
  • Atlas BT20-B Accuracy International Spigot Bottom Rail

    By B&T Industries

    - +


    Must have feature for the BT19 Accuracy International spigot to allow fitment of the BT10 bipod range or accessory

    • BT20-B 1913 bottom rail 41mm
    • Direct attachment for the BT19 Accuracy International spigot


      Atlas BT20 AI rail set Features

      • Standard 1913 Picatinny mounting rail
      • Constructed from T6061 Aluminum finished in Hard Anodized black
      • Allows a fixing point for the optional BT10 series bipods
      • Includes required fixings



      All Atlas Products bought from Scoped Out are covered by the Australian B&T Industries (Accu-shot) Warranty. Our warranty is about you, not us and it's about taking care of you after the sale.

      • Lifetime warranty against faulty parts or workmanship
      • Fully transferable
      • A receipt will be required so we can trace back proof of purchase

      The warranty does not cover loss, misuse, theft or deliberate damage to the product


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