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Spro USA
Overview
The Spro USA Sprinco Usa Spring Kit Std Buffer Spring & Hd 5-Coil Extractor Spring is a buffer spring. Compare prices from multiple merchants and find the best deal.
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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 | 71 |
| Strike Industries Extended Bolt Catch | Bolt Catch | 67 |
| Strike Industries Cobra Billet Aluminum Trigger Guard - Red | Trigger Guard | 49 |
| 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 | 80.8% |
| AR-10 | 17.7% |
| AR-9 | 1.5% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 66.9% |
| .223 Wylde | 13.2% |
| 300 Blackout | 7.1% |
| .308 Win | 4.5% |
| .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 | 44.1% |
| Carbine | 27.9% |
| Rifle | 17.5% |
| Pistol | 9.2% |
| Blowback | 0.4% |
| Intermediate | 0.4% |
| Proprietary | 0.4% |
Builds in the community that include the Sprinco Usa Spring Kit Std Buffer Spring & Hd 5-Coil Extractor Spring
| Build | Parts | Total |
|---|---|---|
![]() | 23 | $1917.62 |
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