Samson Manufacturing B.R.E. Bufferless Receiver Extension – Folding Picatinny Adapter, Flat Dark Earth – 04-06143-32 (UPC: 850059556337)
Set up your bufferless rifle or pistol the right way with the Samson Manufacturing Corp. B.R.E. Bufferless Receiver Extension, Folding Receiver Extension, Fits Picatinny – Flat Dark Earth, 04-06143-32, UPC 850059556337.
This innovative bufferless receiver extension with integrated Picatinny folding adapter gives you a rugged, 6-position adjustable carbine-style stock interface for modern platforms like the Brownells BRN-180®, SIG Sauer® MCX, SIG Sauer® MPX®, and other bufferless uppers with a rear 1913 rail—all in a sleek Flat Dark Earth (FDE) finish. samson-mfg.com+2OpticsPlanet+2
Important: No stock or brace is included. This product is the receiver extension and folding Picatinny adapter only. samson-mfg.com+1
Purpose-Built for Bufferless Picatinny Platforms
The Samson B.R.E. (Bufferless Receiver Extension) is designed to mount directly to a rear Picatinny (1913) rail, giving you an adjustable carbine-style stock interface on platforms that do not use a traditional AR buffer tube system. samson-mfg.com+2Brownells+2
Compatible with:
Once installed, it provides a mil-spec AR-15 carbine receiver extension pattern, ready to accept most mil-spec adjustable AR-15 stocks (not included). samson-mfg.com+2OpticsPlanet+2
6-Position Adjustable Carbine Receiver Extension
Samson engineered the B.R.E. to work just like a premium AR-15 carbine buffer tube—without the buffer:
6-position adjustable for fine-tuning length of pull
Compatible with mil-spec AR-15 adjustable carbine stocks samson-mfg.com+2OpticsPlanet+2
Allows you to tailor your setup for body armor, heavy clothing, or different shooting positions
This makes the B.R.E. a fantastic option for duty, defensive, training, or PCC builds where ergonomics and repeatable length-of-pull matter.
Folding Picatinny Adapter – Compact and Ambidextrous
One of the biggest advantages of the Samson B.R.E. is its integrated folding mechanism:
For vehicles, packs, and tight storage spaces, being able to fold the stock assembly is a huge plus—especially on compact bufferless platforms.
6061-T6 Aluminum with MIL-Spec Hardcoat Finish
Durability is non-negotiable on a hard-use receiver extension, so Samson builds the B.R.E. from 6061-T6 aluminum and finishes it with a military-grade anodizing:
This combination gives you:
Excellent corrosion and wear resistance
A tough surface that holds up to sling use, vehicle racks, and real field abuse
A matte FDE tone that blends perfectly with modern FDE/earth-tone builds
Skeletonized for Reduced Weight & Aggressive Aesthetics
The Samson B.R.E. isn’t just functional—it looks good doing it:
Skeletonized receiver extension and adapter to reduce weight samson-mfg.com+2Brownells+2
Cutouts give the unit a modern, aggressive profile that matches today’s lightweight carbines and PCCs
Samson openly admits part of the reason: “because it looks cool.”
The result is a receiver extension that balances rigidity, reduced weight, and eye-catching design without compromising strength.
Ramp Design for Easier Stock Installation
If you’ve ever wrestled an AR stock onto a receiver extension, you’ll appreciate this detail:
The B.R.E. includes a machined ramp to drastically improve the ease of installing AR-15 stocks. samson-mfg.com+2Brownells+2
Makes it easier to slide stocks on and off for configuration changes or stock swaps
This is especially handy for builders or armorers who set up multiple guns or frequently test different stock options.
Compact Size & Practical Specs
Flat Dark Earth model 04-06143-32 shares the same proven dimensions as the black variant: OpticsPlanet+2MidwayUSA+2
Extension length: 6.36" (tube only)
Overall length: approx. 7.25" with folding adapter installed OpticsPlanet+1
Height: 1.44"
Width: ~0.9"
Weight: about 10.2 oz (complete unit) OpticsPlanet+2MidwayUSA+2
These dimensions make it compact enough for PDW-style builds while still providing the adjustability and feel of a full-featured carbine extension.
Flat Dark Earth (FDE) – Perfect for Modern Builds
This specific configuration is finished in Flat Dark Earth—a go-to color for serious AR and PCC builders: OpticsPlanet+1
Matches or complements FDE receivers, handguards, grips, and stocks
Ideal for multi-cam, coyote, and earth-tone themed rifles
Offers a softer visual signature than basic black while still looking professional and mission-ready
If you’re building a BRN-180, MCX, or MPX in FDE, this B.R.E. is the perfect rear-end solution to keep the look consistent.
Made in the USA – Samson Quality You Can Trust
Samson has built a strong reputation for rock-solid, American-made firearm accessories, and the B.R.E. is no exception:
Designed, manufactured and finished in Keene, NH, USA samson-mfg.com+1
Backed by Samson’s commitment to quality machining and finish work
Trusted by shooters who demand serious durability from their gear
When you choose the Samson B.R.E., you’re not rolling the dice on a generic import—you’re getting a purpose-engineered, American-made part.
Key Features – Samson B.R.E. Bufferless Receiver Extension FDE (04-06143-32 / 850059556337)
Manufacturer: Samson Manufacturing Corp.
Product Name: B.R.E. Bufferless Receiver Extension with Folding Picatinny Adapter
Color / Finish: Flat Dark Earth, matte hardcoat anodized OpticsPlanet+1
MPN: 04-06143-32
UPC: 850059556337 OpticsPlanet
Mount Type: Rear Picatinny (1913) rail
Compatibility:
Stock Interface: Mil-spec AR-15 adjustable carbine stocks (no stock included) samson-mfg.com+1
Adjustability: 6-position carbine-style length-of-pull
Material: 6061-T6 aluminum
Weight: ~10.2 oz
Overall Length: ~7.25" with folding adapter
Special Features:
Integrated folding mechanism (reversible for right-side fold)
Skeletonized for weight reduction
Ramp to ease stock installation
Made in the USA
Why Choose the Samson B.R.E. FDE for Your Bufferless Build?
If you’re running a Picatinny-mounted, bufferless upper and want a folding, adjustable, AR-style stock interface, the Samson Manufacturing B.R.E. Bufferless Receiver Extension, Flat Dark Earth, 04-06143-32 (UPC 850059556337) delivers:
A robust, 6-position carbine receiver extension compatible with mil-spec AR-15 stocks
An integrated folding Picatinny adapter for compact storage and transport
Lightweight, skeletonized 6061-T6 aluminum with MIL-spec hardcoat anodizing
Made-in-USA quality and field-ready durability
A Flat Dark Earth finish that looks right at home on modern tactical builds
Add this B.R.E. to your BRN-180, MCX, MPX, or other Picatinny-rear platform and transform it into a folding, adjustable, AR-stock capable system that’s as functional as it is good-looking.
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