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Samson B.R.E. Bufferless Receiver Extension with Reversible Folding Stock Adapter 04-06143-01 UPC 850059556146
Product Description
The Samson Manufacturing B.R.E. (Bufferless Receiver Extension) with Reversible Folding Stock Adapter (04-06143-01) is an innovative stock interface engineered for bufferless rifle and pistol platforms utilizing a rear 1913 Picatinny rail section. Designed to combine the tactical adaptability of a side-folding mechanism with the familiar ergonomics of a standard carbine receiver extension, the B.R.E. allows shooters to mount any standard MIL-SPEC AR-15 collapsible stock onto bufferless platforms such as the Sig MCX, Ruger LC Carbine, CZ Scorpion, PSA JAKL, or BRN-180.
Precision CNC-machined from 6061-T6 aluminum, the B.R.E. tube features a 6-position adjustment rail that accommodates standard carbine stocks, allowing precise length-of-pull (LOP) customization. The integrated side-folding hinge mechanism features a reversible hinge plate that armorers can configure to fold either left or right depending on receiver controls, charging handle operation, or ejection port clearance preferences.
Featuring a heavy-duty stainless steel locking mechanism with a positive spring detent, the folding hinge locks up rock-solid in both extended and folded positions with zero play or rattle. Finished in Mil-Spec Type III hardcoat black anodizing, the Samson B.R.E. resists severe physical abrasion, recoil stress, and environmental exposure while maintaining a low-profile footprint for compact transit and vehicle staging.
*Armorer Bench Notes & Real-World Staging Guidance:*
Fitment Matrix: Mounts to any firearm upper or lower receiver equipped with a rear vertical MIL-STD-1913 Picatinny rail interface (e.g., Sig Sauer MCX/MPX, PSA JAKL, BRN-180, Ruger LC Carbine, or AR-15 platforms with rear Picatinny endplate adapters). Accepts standard MIL-SPEC AR-15 collapsible carbine stocks.
- Inspect the firearm to verify the chamber is clear, magazine removed, and safety engaged.
- Determine preferred folding orientation (left-folding or right-folding); if reversing hinge orientation, unbolt the hinge mechanism pin, rotate the hinge body 180 degrees, and re-torque screws with threadlocker.
- Align the Picatinny mounting clamp onto the receiver's rear 1913 rail section at the desired height slot.
- Apply medium-strength threadlocker (Blue 242/243) to the clamp cross-bolt and torque to manufacturer specification (30–35 in-lbs). Slide your chosen MIL-SPEC stock onto the receiver extension.
Key Features
- Bufferless Picatinny Interface: Mounts directly to rear MIL-STD-1913 Picatinny rails on bufferless long guns and PCC platforms.
- 6-Position MIL-SPEC Tube: Accepts standard MIL-SPEC AR-15 carbine collapsible stocks for full length-of-pull adjustability.
- Reversible Folding Hinge: Dual-direction hinge architecture allows user configuration for left-side or right-side folding.
- Precision 6061-T6 Aluminum Construction: CNC-machined body provides extreme structural integrity with minimal weight penalty.
- Mil-Spec Hardcoat Anodized Black: Durable Type III anodizing protects against friction wear, chemical exposure, and corrosion.
Product Specifications
- Brand: Samson Manufacturing
- Model/Series: B.R.E. (Bufferless Receiver Extension) w/ Folding Adapter
- MPN / SKU: 04-06143-01
- UPC: 850059556146
- Interface: Rear MIL-STD-1913 Picatinny Rail
- Stock Compatibility: MIL-SPEC AR-15 Collapsible Stocks
- Positions: 6-Position Adjustable
- Material: 6061-T6 Aluminum / Stainless Steel Locking Hardware
- Finish/Color: Matte Black Hardcoat Anodized
- Country of Origin: United States