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Sprinco USA
Overview
The Sprinco USA Enhanced Buffer XP 5-Coil Bolt Extractor Spring is designed to improve the reliability and extraction performance of your AR-15 build. With its XP power rating, this spring provides increased tension and durability, ensuring consistent bolt function under various shooting conditions. This spring is commonly found in builds chambered for .308 Win, making it a solid choice for those looking to enhance their heavy-caliber rifles.
Based on build data

Law Tactical AR Folding Stock Adapter Gen 3 - HK
Stock Adapter
Strike Industries Extended Bolt Catch
Bolt Catch
Strike Industries Cobra Billet Aluminum Trigger Guard - Red
Trigger Guard
Wilson Combat Ar-15 Lo-Profile Gas Block .750" Black
Gas Block
Strike Industries AR-10 Shift Pins, Black - SI-AR10-SHIFT-BK
Takedown Pin
Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C
Charging HandleAggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Law Tactical AR Folding Stock Adapter Gen 3 - HK | Stock Adapter | 72 |
| Strike Industries Extended Bolt Catch | Bolt Catch | 67 |
| Strike Industries Cobra Billet Aluminum Trigger Guard - Red | Trigger Guard | 50 |
| Wilson Combat Ar-15 Lo-Profile Gas Block .750" Black | Gas Block | 48 |
| Strike Industries AR-10 Shift Pins, Black - SI-AR10-SHIFT-BK | Takedown Pin | 47 |
| Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C | Charging Handle | 46 |
| Platform | Percentage |
|---|---|
| AR-15 | 80.9% |
| AR-10 | 17.6% |
| AR-9 | 1.5% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 66.2% |
| .223 Wylde | 13.7% |
| 300 Blackout | 7.2% |
| .308 Win | 4.6% |
| .450 Bushmaster | 2.3% |
| 6mm ARC | 1.9% |
| .458 SOCOM | 1.1% |
| 7.62x39mm | 1.1% |
| 6.5 Grendel | 1.1% |
| 9mm | 0.4% |
| .224 Valkyrie | 0.4% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 44.3% |
| Carbine | 27.8% |
| Rifle | 17.4% |
| Pistol | 9.1% |
| Blowback | 0.4% |
| Intermediate | 0.4% |
| Proprietary | 0.4% |
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