Atlas Bipod BT20-B AAIS bottom rail for Accuracy International spigot mounts

Atlas Bipod BT20-B AAIS bottom rail in black anodised aluminium, second studio image

Atlas Bipod BT20-B bottom rail for the Atlas AI spigot mount, third studio image

Atlas Bipod BT20-B AAIS Bottom Rail

Name: Atlas Bipod BT20-B AAIS Bottom Rail
Brand: B&T Industries
SKU: BT20-B
Price: 29.95 GBP
Availability: OutOfStock

4.93 out of 5 · 285 store reviews

£29.95

VAT included.

Currently unavailable £5 Tracked Delivery · 7-10 Business Days SKU: BT20-BUPC: 810040220265

Estimated delivery: 7-10 business days

We cover all duties and import charges, so there is nothing to pay on delivery. Stock is imported from the USA to us, then shipped to you from the UK.

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Description

The Atlas BT20-B AAIS Bottom Rail, part number BT20-B from B&T Industries, is the MIL-STD-1913 bottom rail only for the BT19 Accuracy International spigot. It is the same rail found on the BT21 TRG bracket, supplied with blind threaded holes for adaption work and custom mounting solutions.

How It Compares

The BT20-B is one rail; the Atlas BT20 AAIS 1913 rail set is the full three-piece set for the spigot. The Atlas BT43 leveraged rail is this bottom rail supplied with an ADM-170-S lever already installed, which is the ready-made quick-detach version. The same rail appears built into the Atlas BT21 Sako TRG bracket. The spigot itself is the Atlas BT19 Accuracy International spigot.

Ideal For

Gunsmiths and stockers building a custom mounting solution
Accuracy International owners who need only the bottom rail
Adaption work where blind threaded holes are wanted rather than through holes
Replacing or duplicating the rail found on the BT21 TRG bracket

Key Features

Type: 1913 Picatinny bottom rail for the BT19 AAIS spigot
Holes: Blind threaded
Also found on: The BT21 Sako TRG bracket uses the same rail
Lever version: The BT43 leveraged rail is this rail with an ADM-170-S lever installed
Origin: Genuine B&T Industries, LLC — Made in USA

Technical Specifications

Type	1913 Picatinny bottom rail for BT19 AAIS
Holes	Blind threaded
Related Parts	BT20 three-piece rail set; BT43 leveraged rail; BT21 TRG bracket
Brand	B&T Industries, LLC — Made in USA
SKU / MPN / UPC	BT20-B / BT20-B / 810040220265

What's Included

1× Atlas BT20-B bottom rail

Warranty

Supplied as genuine B&T Industries stock and covered by the manufacturer's warranty — contact our UK team and we will handle any claim on your behalf.

UK Delivery & Support

This Atlas rail is dispatched tracked from our UK warehouse — no import duties and no customs delays — and is backed by UK-based aftersales support.

Frequently Asked Questions

What is the Atlas BT20-B?
The BT20-B is the 1913 Picatinny bottom rail for the BT19 Accuracy International spigot, supplied on its own with blind threaded holes rather than as part of a set.

What is the difference between the BT20-B and the BT20?
The BT20-B is the bottom rail only, while the BT20 is the three-piece AAIS rail set that adds full 1913 rail capability to the BT19 spigot.

Why would I choose the BT20-B rather than the BT43?
The BT43 is the same bottom rail supplied with an ADM-170-S lever already installed, so choose the BT20-B when you are doing adaption work and do not want the lever, and the BT43 when you want a ready-made quick-detach interface.

Is this the same rail as on the BT21 TRG bracket?
Yes — the BT21 Sako TRG bracket incorporates the same 1913 bottom rail that is sold separately as the BT20-B.

What is in the box?
The box contains one Atlas BT20-B AAIS bottom rail.

Atlas Bipod BT20-B AAIS Bottom Rail £29.95

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Great item. If i need a optic i will be ussing them again, very happy

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Great product with super delivery at a great price , will use again .

thanks

Great price and service , fast delivery.
Will definitely use again .
Thanks

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Great service only let down by the postal service. Obviously beyond his control, many thanks.

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Good price as well. No point shopping anywhere else for scopes in the uk.

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Schnelle und reibungslose Lieferung, gerne wieder.

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The purchased product is a Nightforce ATACR 7-35x56. The waiting times were a bit long, as for many other products imported from the USA, and therefore not dependent on Xtreme Tactical who always updated me on the status of the shipment (thank you George). The product has a high cost but adequate to the characteristics of the Nightforce brand, the price paid slightly lower than the Italian one. Nightforce, is always a point of reference in the panorama of high quality optics. Very satisfied, too bad that with Brexit things are getting very complicated for Europeans.