SKU CSSI|AH419ALKMLOK12 Category

Area 419 ARCALOCK 12” M-LOK Dovetail Rail 16 x 2.5 x 2.5″ Black

Area 419 ARCALOCK 12” M-LOK Dovetail Rail 16 x 2.5 x 2.5″ Black

$100.00

8 in stock

 Rear angled barricade stop sold separately.

THIS RAIL REQUIRES 6 CONSECUTIVE MLOK SLOTS TO ATTACH. FOR STOCKS WITH FEWER MLOK SLOTS YOU’LL WANT A 12″ UNIVERSAL RAIL WITH MLOK ATTACHMENT NUTS

Area 419 is always looking for ways to improve existing products when we are not developing new technologies. With the rapid growth in popularity of ARCA rails in precision rifle we saw a need to improve this great dovetail technology to something that could be mechanically locked in place instead of just friction.  If you have ever tried using a Barricade stop on an existing ARCA rail you’ve probably also seen it slide under much pressure.

Introducing the ARCALOCK Dovetail Rail System *Rail is only locking with an Area 419 clamp*

Rail Features:
– Serrated rail sides interface with our proprietary clamp design to mechanically lock it in place so no movement is possible.  Serrations are not sharp will not damage bags or your hands.
– Rail is backwards compatible with standard Arca accessories but will not be locking without our clamp
– Rail is 12″ long giving you the entire length of the stock forend for attachments.  The best part is it still only weighs in at a paltry 4.1oz
– Made to the RRS 1.5″ Dovetail Standard so you can be sure lever clamps will work
– No sharp edges. Every corner is radiused and every edge is chamfered on the machine. This takes longer to make but it is the only right way.
– Type 3 Hard Coat anodized for additional durability.
– Made from 6061-T6 Aluminum
– Made in-house here in the USA from USA sourced Aluminum on USA made CNCs
– M-LOK Slots on underside of rail also allow you to attach any M-LOK accessories to the 419 Rail
– Rail comes with all M-LOK mounting hardware

Additional information

Upc

853675008709

Manufacturer

Area 419

Manufacturer part number

419-ALK-MLOK12

Shipping weight

0.29

FAQ

BJ Firearms LLC is a federally licensed firearms business focused on providing quality firearms, accessories, and related services while promoting responsible ownership, education, and community engagement.

The company was founded to serve firearm enthusiasts with knowledgeable service, real-world experience, and a commitment to professionalism and safety.

We focus on real experience, personalized service, hands-on product knowledge, and community involvement — not just sales. Our goal is to help customers make informed decisions and feel confident with their equipment.

Yes. We operate as a federally licensed firearms dealer (FFL), following all applicable federal, state, and local regulations.

Yes. We partner with trusted suppliers to provide quality products and reliable sourcing.

Yes. We partner with content creators and industry professionals to provide real-world insights and experiences.

We work with everyone — from first-time buyers to experienced enthusiasts. Education and guidance are a big part of what we do.

We offer firearms, accessories, gear, and related equipment depending on availability and customer needs.

Yes. We help customers evaluate their needs, experience level, and intended use to find the right fit.

Yes. Depending on the request, we can help source specific products or assist with custom configurations.

Yes. We actively engage in hands-on experiences, demonstrations, and community-related firearm activities when possible.

Yes. We support content that helps people learn about equipment, safety, and responsible firearm ownership.

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Customer Reviews

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“Great people, great service.” Very down-to-earth and easy to talk to. They explain things clearly and make sure you understand your options. Highly recommend, especially if you’re new.
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