Samson Manufacturing126513997
Samson B.R.E. Receiver Extension with Folding Picatinny Adapter$196.45
Availability: In Stock
The Samson Bufferless Receiver Extension (B.R.E.) with folding picatinny adapter is a 6-position adjustable carbine receiver extension built for modern AR-platform firearms that run without a traditional buffer tube. This FDE-finished extension bridges the gap between mil-spec AR-15 stocks and bufferless platforms like the Brownells BRN-180, Sig Sauer MCX, and Sig Sauer MPX, letting you use familiar adjustable carbine stocks on unconventional setups. If you've invested in a quality mil-spec stock but moved to a bufferless upper or alternative platform, the B.R.E. is your compatibility solution.
The folding picatinny adapter lets you collapse the stock to the right side, useful for tight spaces, vehicle stowage, or just changing your rifle's profile on the fly. The integrated ramp on the extension takes friction out of stock installation—no more wrestling with tight-fitting stocks. The folding mechanism itself is removable and reattachable, so you can set up your preferred fold direction depending on your build and shooting style.
Samson engineered this for shooters who value flexibility: you're not locked into proprietary stocks or limited adjustment options. Pair it with any compatible mil-spec adjustable carbine stock (sold separately) and you've got a modular, tunable setup. The FDE finish coordinates with modern tactical and hunting builds.
| Brand | Samson Manufacturing |
| Model | B.R.E. (Bufferless Receiver Extension) |
| Part Number | 04-06143-32 |
| Type | Bufferless receiver extension with folding picatinny adapter |
| Positions | 6-position adjustable |
| Stock Compatibility | Mil-spec AR-15 adjustable carbine stocks |
| Platform Compatibility | Brownells BRN-180, Sig Sauer MCX, Sig Sauer MPX, and similar bufferless setups |
| Folding Mechanism | Removable and reattachable, right-side fold |
| Finish | FDE |
The B.R.E. is designed for bufferless AR-platform firearms, including the Brownells BRN-180, Sig Sauer MCX, Sig Sauer MPX, and other buffer tube-less setups. It accepts any compatible mil-spec AR-15 adjustable carbine stock (not included).
Yes, the B.R.E. is designed to work with mil-spec AR-15 adjustable carbine stocks. If your stock is compatible with standard mil-spec carbine dimensions, it will fit the B.R.E. adapter. Stock is sold separately.
The folding mechanism is removable and reattachable, allowing you to adjust your setup. You can also reconfigure the fold direction depending on your build preferences.
You receive the Samson B.R.E. receiver extension with the folding picatinny adapter. A compatible mil-spec AR-15 adjustable carbine stock is not included and must be purchased separately.
SKU: 144598968 • Width: 3.25in • Height: 3.25in • Depth: 8.75in • Weight: 0.81oz
Availability: In Stock
The Samson Bufferless Receiver Extension (B.R.E.) with folding picatinny adapter is a 6-position adjustable carbine receiver extension built for modern AR-platform firearms that run without a traditional buffer tube. This FDE-finished extension bridges the gap between mil-spec AR-15 stocks and bufferless platforms like the Brownells BRN-180, Sig Sauer MCX, and Sig Sauer MPX, letting you use familiar adjustable carbine stocks on unconventional setups. If you've invested in a quality mil-spec stock but moved to a bufferless upper or alternative platform, the B.R.E. is your compatibility solution.
The folding picatinny adapter lets you collapse the stock to the right side, useful for tight spaces, vehicle stowage, or just changing your rifle's profile on the fly. The integrated ramp on the extension takes friction out of stock installation—no more wrestling with tight-fitting stocks. The folding mechanism itself is removable and reattachable, so you can set up your preferred fold direction depending on your build and shooting style.
Samson engineered this for shooters who value flexibility: you're not locked into proprietary stocks or limited adjustment options. Pair it with any compatible mil-spec adjustable carbine stock (sold separately) and you've got a modular, tunable setup. The FDE finish coordinates with modern tactical and hunting builds.
| Brand | Samson Manufacturing |
| Model | B.R.E. (Bufferless Receiver Extension) |
| Part Number | 04-06143-32 |
| Type | Bufferless receiver extension with folding picatinny adapter |
| Positions | 6-position adjustable |
| Stock Compatibility | Mil-spec AR-15 adjustable carbine stocks |
| Platform Compatibility | Brownells BRN-180, Sig Sauer MCX, Sig Sauer MPX, and similar bufferless setups |
| Folding Mechanism | Removable and reattachable, right-side fold |
| Finish | FDE |
The B.R.E. is designed for bufferless AR-platform firearms, including the Brownells BRN-180, Sig Sauer MCX, Sig Sauer MPX, and other buffer tube-less setups. It accepts any compatible mil-spec AR-15 adjustable carbine stock (not included).
Yes, the B.R.E. is designed to work with mil-spec AR-15 adjustable carbine stocks. If your stock is compatible with standard mil-spec carbine dimensions, it will fit the B.R.E. adapter. Stock is sold separately.
The folding mechanism is removable and reattachable, allowing you to adjust your setup. You can also reconfigure the fold direction depending on your build preferences.
You receive the Samson B.R.E. receiver extension with the folding picatinny adapter. A compatible mil-spec AR-15 adjustable carbine stock is not included and must be purchased separately.
SKU: 144598968 • Width: 3.25in • Height: 3.25in • Depth: 8.75in • Weight: 0.81oz