Area 419 ARCALOCK Spigot Extension

The Area 419 ARCALOCK Spigot Extension (stock code ARCALOCK Spigot Extension) is a spacer that fits between an ARCA-Swiss rail and an ARCALOCK clamp and moves the bipod 1.25 in (32 mm) further forward. It does not mount a bipod on its own — it is an interface part that buys you forward reach when the rail runs out or when something else is in the way.

Two situations call for it: the ARCA rail ends before the point where you actually want the bipod, and a rail-mounted accessory such as a light, a laser or a hand stop occupies the space you wanted. Moving the feet forward also widens the support base, which settles the rifle down on a longer forend.

How It Compares

This is an accessory, not a clamp. It pairs with the Area 419 ARCALOCK knob clamp or the Area 419 ARCALOCK QD lever clamp, both of which mount NC "No Clamp" Atlas bipods to an ARCA dovetail. If instead of a fixed forward offset you want continuous adjustment along the rail, the Arisaka Picatinny rail slider does that on Picatinny. See the whole Area 419 range and the rest of our bipod accessories.

Ideal For

• F Class and benchrest shooters wanting the widest possible support base
• Precision rifle competitors whose ARCA rail stops short of the muzzle end of the forend
• Rifles where a light, laser or hand stop already occupies the forward rail space
• Existing Area 419 ARCALOCK clamp owners adding forward reach

Key Features

• Function: Extends the bipod 1.25 in (32 mm) forward of the clamp position
• Interface: Fits between an ARCA-Swiss rail and an ARCALOCK clamp
• Use: Requires a separate ARCALOCK clamp — it is not a bipod mount by itself
• Benefit: Widens the support base and clears rail-mounted accessories
• Brand: Area 419, made in the USA

Technical Specifications

What's Included

• 1 × Area 419 ARCALOCK spigot extension

UK Delivery & Support

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

Frequently Asked Questions

What does the Area 419 ARCALOCK Spigot Extension do?
The Area 419 ARCALOCK Spigot Extension sits between an ARCA-Swiss rail and an ARCALOCK clamp and pushes the bipod 1.25 in (32 mm) further forward than the clamp alone would allow.

Can I mount a bipod with the spigot extension on its own?
No. The Area 419 ARCALOCK Spigot Extension is an interface part and must be used with an Area 419 ARCALOCK clamp, which is sold separately.

Why would I want the bipod further forward?
Moving the bipod forward widens the support base and steadies the rifle, and it lets you place the bipod past the end of a short ARCA rail or clear of a light, laser or hand stop already fitted to the forend.

How far forward does it move the bipod?
The Area 419 ARCALOCK Spigot Extension moves the bipod 1.25 inches, which is approximately 32 millimetres, forward of its normal clamped position.

Which rail standard does it work with?
The Area 419 ARCALOCK Spigot Extension works with ARCA-Swiss dovetail rails, in combination with an Area 419 ARCALOCK clamp.