Samson Manufacturing B.R.E. – Bufferless Receiver Extension, Folding, Picatinny-Mount – Matte Black
Model: 04-06143-01 • Alt Code: 040614301 • Color: Black • Interface: 1913 Picatinny • Finish: Matte / Hard Anodized • Includes: Folding Bufferless Receiver Extension Only – No Stock Included
Turn your modern firearm into an ultra-compact, folding platform with the Samson Manufacturing Corp. B.R.E., Bufferless Receiver Extension, Folding Receiver Extension, Fits Picatinny, Matte Finish, Black, No Stock Included 04-06143-01 850059556146. The B.R.E. (Bufferless Receiver Extension) is a rugged, folding rear interface designed specifically for bufferless firearms and systems that use a rear 1913 Picatinny rail—giving you a rock-solid mounting point for a stock or brace (where legal) while maintaining maximum compactness and transportability.
Important: This SKU is the bufferless folding receiver extension only. No stock is included. You add the compatible stock or accessory of your choice to the rear of the B.R.E.
Purpose-Built for Bufferless, Picatinny-Rear Platforms
The Samson B.R.E. is engineered for firearms that do not require a traditional AR-15 buffer tube and buffer system:
Designed to attach directly to a 1913 Picatinny rail at the rear of the receiver or chassis.
Ideal for modern bufferless platforms such as certain PCCs, AR-pattern systems with internal recoil assemblies, some AK and PDW-style guns, and rifles/pistols that ship with a 1913 rear rail.
Provides a folding rear extension that you can then equip with a compatible stock, brace, or rear accessory (depending on your configuration and local laws).
If your firearm uses a rear 1913 Pic interface instead of a traditional buffer tube, the B.R.E. is the foundation you need for a folding, adjustable rear setup.
Folding Receiver Extension – Compact Storage & Transport
One of the primary advantages of the B.R.E. is its integrated folding mechanism:
Side-folding design allows the receiver extension (and attached stock/brace) to fold alongside the receiver, significantly reducing overall length.
Perfect for vehicle storage, discreet cases, backpacks, and confined environments, where every inch matters.
When deployed, the hinge locks the extension in place to provide a stable, repeatable rear interface for the attached stock.
This lets you transform a full-length carbine or PCC into a compact package for transport—then quickly deploy it into a ready-to-shoot configuration.
Bufferless Receiver Extension – Clean, Strong Rear Interface
Unlike a traditional AR buffer tube, the B.R.E. is a bufferless extension:
There is no internal buffer or spring—it serves purely as a robust rear structural element and mounting point.
Eliminates the need for AR-style buffer systems on designs that already contain their recoil assembly internally.
Provides a streamlined, minimalist rear extension that looks clean on modern chassis and monolithic receivers.
This is especially useful on platforms built around internal recoil systems, where a standard buffer tube would be both redundant and awkward.
1913 Picatinny Mount – Broad Compatibility
The B.R.E. is built around the 1913 Picatinny interface, now common on many modern rifles and pistols:
Clamps directly to rear 1913 rails often found on PCCs, PDW-style pistols, AK conversions, and precision chassis systems.
Simple, robust connection—no specialized proprietary receiver threads required.
Makes it easy to move the B.R.E. between compatible firearms, or standardize multiple guns around one rear-mount system.
If your firearm has a rear Pic rail instead of a buffer tube, the B.R.E. is designed to fit that environment.
Durable Construction & Matte Black Finish
Samson Manufacturing is known for high-quality machining and finishes, and the B.R.E. follows that tradition:
Precision-machined from high-strength aluminum and steel components (depending on section), providing an excellent strength-to-weight ratio for a folding rear assembly.
Matte black finish (typically hard anodized on aluminum components) offers corrosion resistance and a low-glare, duty-ready appearance.
Built to handle real-world range, duty, and training use, with tight tolerances for a solid lock-up when deployed.
This is not a flimsy hinge—it’s a duty-grade folding extension meant to live on serious firearms.
No Stock Included – Choose Your Own Rear Setup
This specific model is sold without any stock or brace, giving you complete flexibility:
The B.R.E. provides the folding receiver extension only, so you can choose the exact stock or rear accessory that fits your needs and local regulations.
Ideal for users who already own a compatible stock system or who want to build out a custom configuration.
Lets armorers and builders standardize firearms around a common folding extension while tailoring the rear hardware to specific roles (duty, competition, home defense, etc.).
This approach keeps the B.R.E. modular and future-proof as your preferences or regulations change.
Ideal Applications
The Samson B.R.E. Folding Bufferless Receiver Extension is a smart choice for:
Pistol caliber carbines (PCCs) with rear Pic rails that don’t need a buffer tube.
AK and AK-style rifles/receivers that have been adapted with a rear Picatinny interface.
Modern PDW-style firearms where compactness and folding capability are critical.
Chassis-based rifles and precision rigs using internal recoil systems but wanting a folding stock option.
If you’re building a compact, travel-friendly, or mission-configurable firearm, the B.R.E. is a key component of that build.
Compliance & Installation Notes
Always verify local, state, and federal laws before pairing the B.R.E. with any stock or brace, especially on firearms classified as pistols or “others.”
Ensure compatibility with your specific firearm’s rear 1913 rail dimensions and follow Samson’s torque and installation instructions carefully.
If you’re not experienced with firearm assembly or folding adapters, consider having a qualified gunsmith perform the installation.
Proper installation ensures reliable function and long-term durability.
SEO-Focused Summary
The Samson Manufacturing Corp. B.R.E., Bufferless Receiver Extension, Folding Receiver Extension, Fits Picatinny, Matte Finish, Black, No Stock Included 04-06143-01 (040614301, UPC 850059556146) is a rugged folding bufferless rear extension designed for firearms that use a 1913 Picatinny rear interface and internal recoil systems. Featuring a side-folding design, matte black finish, and robust clamping mount, this Samson B.R.E. Picatinny folding receiver extension provides a compact, modular foundation for adding your choice of stock or brace (where legal), making it ideal for PCCs, AK conversions, PDW builds, and chassis rifles that demand a durable, compact, and configurable rear setup.
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