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Brownells
Overview
The Brownells M4 Buttstock in black is a collapsible stock designed to fit Mil-Spec buffer tubes, providing flexibility in length for various shooting applications. Made from durable polymer, this stock delivers a lightweight yet sturdy option for your AR-15 build, enhancing overall ergonomics and comfort during use. This buttstock is frequently found in builds utilizing a Mid-Length gas system chambered in .223 Wylde, making it a practical choice for versatile shooting scenarios.
Based on build data

BLEM PSA AR15 Complete Classic Stealth Lower, Black
Lower Receiver
Strike Industries Extended Bolt Catch
Bolt Catch
Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C
Charging Handle
Magpul AFG-2 Angled Fore Grip - Black
Foregrip
Strike Industries AR-10 Shift Pins, Black - SI-AR10-SHIFT-BK
Takedown Pin
Law Tactical AR Folding Stock Adapter Gen 3 - HK
Stock AdapterAggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| BLEM PSA AR15 Complete Classic Stealth Lower, Black | Lower Receiver | 106 |
| Strike Industries Extended Bolt Catch | Bolt Catch | 98 |
| Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C | Charging Handle | 86 |
| Magpul AFG-2 Angled Fore Grip - Black | Foregrip | 84 |
| Strike Industries AR-10 Shift Pins, Black - SI-AR10-SHIFT-BK | Takedown Pin | 80 |
| Law Tactical AR Folding Stock Adapter Gen 3 - HK | Stock Adapter | 77 |
| Platform | Percentage |
|---|---|
| AR-15 | 84.3% |
| AR-10 | 12.8% |
| AR-9 | 2.9% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 69.1% |
| .223 Wylde | 12.1% |
| 300 Blackout | 6.9% |
| .308 Win | 4.1% |
| 9mm | 1.4% |
| 7.62x39mm | 1.3% |
| 6.5 Grendel | 1.3% |
| 6mm ARC | 1.1% |
| .450 Bushmaster | 0.9% |
| .458 SOCOM | 0.5% |
| .223 Remington | 0.3% |
| .204 Ruger | 0.2% |
| .22 ARC | 0.2% |
| .224 Valkyrie | 0.2% |
| .45 ACP | 0.2% |
| 6.5 Creedmoor | 0.2% |
| 7.62x51 NATO | 0.2% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 48.4% |
| Carbine | 26.7% |
| Rifle | 14.4% |
| Pistol | 9.1% |
| Blowback | 1% |
| Proprietary | 0.2% |
| Intermediate | 0.2% |
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