Description
If you already run the Law Tactical ARIC bolt carrier in your rifle, this plate is what bridges that setup to a 1913 Picatinny stock or brace instead of a standard buffer tube. It mounts to the rear of your AR-15 lower and nests the ARIC's rear end cap right up against the receiver, giving you a vertical section of rail to clamp a brace or stock onto. For anyone who has been running a large format pistol or SBR with the ARIC and wished they could skip the tube altogether, this closes that gap.
What the ARIC 1913 Adapter Plate Actually Does
Once this plate is installed, your ARIC equipped rifle can fire with a Picatinny stock or brace folded, fire with it unfolded, and even fire with no stock or brace attached at all. That kind of flexibility is hard to find anywhere else on the AR platform, and it opens the door to running braces like the SB Tactical FS1913 series that clamp directly onto a vertical rail instead of a buffer tube. It also comes with sling sockets built into both sides of the plate, so you're not hunting for a separate mounting point once everything is put together.
Stainless Steel Construction That Matches the Rest of the ARIC System
Law Tactical machines this plate from 17-4 stainless steel, the same grade of steel known for holding up under repeated stress without corroding on you. Given that this part sits right behind the bolt carrier and takes on cycling forces every time the rifle fires, that durability matters. The plate, threaded flange, set screw, and locking screw all work together as one assembly, and none of it requires permanent alteration to your lower receiver.
Installing the ARIC Rail Adapter Plate
Installation follows the same general process as Law Tactical's folding stock adapter, so if you've put one of those on a rifle before, this will feel familiar. You'll need a small driver for the mounting screw and either the included flange tool or Law Tactical's Armorer's Flange Tool for tightening the threaded flange to spec. Just remember this plate is built specifically to pair with the ARIC carrier, not a standard bolt carrier group, so you'll want that piece already installed or on hand before ordering.
Key Specifications
- Manufacturer: Law Tactical LLC
- Manufacturer Part Number: 2025RAP
- UPC: 792671398684
- Material: 17-4 Stainless Steel
- Finish: Black
- Rail Type: MIL-STD-1913 Picatinny
- Required Component: Law Tactical ARIC (AR Internal Carrier), sold separately
- Sling Attachment: Integrated ambidextrous QD sling sockets
- Disassembly: Toolless field maintenance retained
- Fire Folded: Yes, when used with ARIC
- Fire Without Stock/Brace: Yes, when used with ARIC
- Platform Compatibility: AR-15 direct impingement lower receivers
What’s Included
- ARIC RAP body
- Threaded flange
- Side set screw
- Flange tool
- 1913 rail plate
- Plate locking screw
Frequently Asked Questions
Do I need the ARIC carrier to use this adapter plate?
Yes, this plate is built specifically to work with the Law Tactical ARIC (AR Internal Carrier) and is not compatible with a standard bolt carrier group and buffer tube setup. The ARIC itself is sold separately, so if you don't already have one installed you'll want to pick that up first. Without the ARIC, this plate has nothing to interface with inside the receiver.
What kind of stocks or braces will work with the ARIC 1913 adapter plate?
Any stock or brace built for a 1913 Picatinny rail mount will work here, including folding braces from SB Tactical's FS1913 line that clamp onto a vertical rail section. This is different from Law Tactical's original folding stock adapter, which uses a standard buffer tube interface instead. Just double check the brace or stock you're eyeing is designed for a Picatinny clamp rather than a round tube.
Can I fire the rifle without a stock or brace attached at all?
Yes, one of the bigger selling points of this plate paired with the ARIC is that the rifle can cycle and fire with nothing mounted to the rear at all. That's a useful option for large format pistol builds where keeping things minimal matters. You still get sling attachment points on the plate itself even without a stock or brace installed.
Does adding this adapter plate affect toolless maintenance on my ARIC?
No, the plate is designed to keep the same toolless disassembly the ARIC is known for, so field stripping and cleaning stays just as simple as before. You won't need extra tools for day to day maintenance once everything is torqued down during install. The only tools needed are for the initial installation of the plate itself.




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