Accu-Shot Aais Atlas Bipod Adapter Spigot For A.I. & A.I.C.S.

The Accu-Shot AAIS Atlas Bipod Adapter Spigot is the connection point you need to mount an Atlas bipod directly to Accuracy International AI and AICS stocks. This precision-machined adapter lets you use any NC (No Clamp) style Atlas bipod with your AI platform rifle, taking advantage of the rifle's factory retention and release mechanism for a secure, repeatable interface.

Built tough for serious long-range and tactical work, the BT19 spigot is machined from 6061-T6 aluminum with Mil-Spec Type III hard anodize, paired with an alloy steel spigot finished in Manganese Phosphate. This combination delivers durability where it matters while keeping weight minimal—the adapter tips the scales at just 4.7 ounces. A recent design update eliminates the 3-to-9-degree rotation found on earlier versions, giving you a more positive, fixed mounting geometry. Installation is straightforward: loosen the tension nut, seat the spigot fully until you feel a solid click, then snug the tension nut down for a locked fit.

The package includes two 10-32 x 1" flat head socket cap screws and ships in black anodize. If you need additional rail options down the line, the BT20 three-piece 1913 rail set mounts directly to the BT19, expanding your accessory and mounting flexibility. This is the adapter for shooters running Accuracy International rifles who want the stability and adjustability of an Atlas bipod without compromise.

Key Features

• Direct mount to AI/AICS stocks using factory retention mechanism
• Compatible with all NC (No Clamp) style Atlas bipods
• 6061-T6 aluminum construction, Mil-Spec Type III hard anodized
• Alloy steel spigot with Manganese Phosphate finish
• Fixed mounting geometry (no rotation)
• Minimal weight at 4.7 ounces
• Includes two 10-32 x 1" flat head socket cap screws
• Optional BT20 rail set for expanded accessory mounting

Specifications

Model	BT19 AAIS Atlas Bipod Adapter Spigot
Designed For	Accuracy International AI and AICS stocks
Bipod Compatibility	NC (No Clamp) style Atlas bipods
Spigot Material	Alloy steel, Manganese Phosphate finish
Adapter Body Material	6061-T6 aluminum, Mil-Spec Type III hard anodized
Weight	4.7 ounces
Included Hardware	Two 10-32 x 1" flat head socket cap screws
Color	Black

Frequently Asked Questions

Will this adapter work with my Accuracy International rifle?

Yes, the BT19 is designed to mount directly into Accuracy International AI and AICS stocks using the rifle's factory retention and release mechanism. Make sure your stock has the AAIS (Accuracy International Spigot) receptacle.

What Atlas bipods are compatible with the BT19?

Any NC (No Clamp) style Atlas bipod will mount directly to this spigot. If you're unsure whether your bipod is NC style, check with the bipod's documentation or contact us.

What's included, and how do I install it?

The BT19 includes two 10-32 x 1" flat head socket cap screws. To install: loosen the tension nut as much as possible, insert the spigot into the stock receptacle, and push until you hear and feel a solid click. Then tighten the tension nut securely.

Can I add rails or other accessories to this adapter?

Yes. The optional BT20 three-piece 1913 rail set mounts directly to the BT19, giving you multiple options for mounting an Atlas rail-mounted bipod or other rail-compatible accessories.