Description
The LaRue RAT Stock is the kind of upgrade you notice the first time you shoulder your rifle. It was built to ride alongside LaRue's own AR-15 rifles, but it drops right onto any Mil-Spec receiver extension, so you don't need one of their guns to enjoy it. What separates it from the sea of generic collapsible stocks is the two-stage trigger mechanism, and once you've run it, going back to a standard single-pull lever feels clunky.
How the RAT Stock's Two-Stage Trigger Works
Here's the clever part. Pull the trigger all the way to the rear and the stock slides completely free for installation or removal. Pull it only to the halfway point and you can adjust length of pull while staying in whatever position you're shooting from, whether that's prone, off a bench, or slung up. The CNC-machined internals make the whole thing feel smooth and deliberate, and they give you a positive lockup on each Mil-Spec position instead of the mushy engagement you get on budget stocks.
Fit, Feel, and the FDE Finish
The internal cavity is cut for a snug fit on the buffer tube, so there's no wobble and no need for an extra locking collar. Owners consistently point to the tight fitment and the total lack of rattle as the standout, and a few note it feels like it was machined specifically for their setup. The frame is glass-filled polymer over metal internals, which keeps it light while shrugging off range and field abuse. This one wears the Flat Dark Earth finish, so it pairs nicely with tan and multicam builds.
Sling Points and Onboard Storage
LaRue gave the RAT Stock ambidextrous 1/4-inch QD swivel sockets plus 1-inch slots, so lefties and righties both get clean two-point sling anchor points. The rear buttplate locks and slides open to reveal internal compartments sized for cleaning kit components, handy for stashing a field kit right where you'll need it. It's made in the USA and measures a compact 6.99 inches long.
Key Specifications
- Manufacturer: LaRue Tactical
- Model: RAT Stock
- Manufacturer Part Number: LT800-FDE
- UPC: 810143181722
- Color: Flat Dark Earth (FDE)
- Fitment: AR-15 Mil-Spec Receiver Extension
- Adjustment: Two-Stage Trigger Mechanism
- Frame Material: Glass-Filled Polymer with Metal Internals
- Internals: CNC-Machined
- Sling Mounts: Ambidextrous 1/4" QD Swivel Sockets and 1" Slots
- Storage: Locking Rear Buttplate with Internal Compartments
- Length: 6.99 in
- Height: 5.30 in
- Origin: Made in USA
What’s Included
- LaRue RAT Stock (FDE)
- Installation instructions
Frequently Asked Questions
Does the LaRue RAT Stock fit any AR-15?
Yes, as long as your rifle uses a standard Mil-Spec receiver extension, which covers the vast majority of AR-15 builds. It's designed to complement LaRue's own rifles but works on any Mil-Spec buffer tube. If your rifle runs a commercial-spec tube, it won't be a match, so check your buffer tube diameter first.
How is the two-stage trigger different from a normal stock lever?
A standard stock uses one lever pull for everything. On the RAT Stock, a partial pull lets you adjust length of pull while staying on the gun, and a full pull releases the stock entirely for removal. That halfway detent is what lets you fine-tune position without breaking your cheek weld or shooting stance.
Does the RAT Stock come with the cleaning kit that fits inside?
No, the stock has the storage compartments built into the rear buttplate, but the RAT Rod cleaning kit is sold separately. The compartments are sized to hold those components once you add them. Plenty of owners pick up the matching rod kit to keep a field cleaning setup stashed in the stock.
Is the RAT Stock loose or does it rattle on the buffer tube?
The internal cavity is cut for a snug fit, and that tight lockup is one of the features owners bring up most. It grips the Mil-Spec positions with no play and doesn't need an extra locking collar. Some builds fit very tight out of the box, which loosens slightly with use but keeps that no-rattle feel.




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