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Spro USA
Overview
The Sprinco USA 308 M4 Extension Tube CS XP Buffer Spring is specifically designed for AR-10 platforms, featuring a carbine length that optimizes cycling performance for your build. With its XP power rating, this buffer spring provides enhanced resistance to compression, ensuring reliable operation even under demanding conditions. This spring is commonly found in builds with a mid-length gas system and is often paired with the 5.56 NATO caliber, making it a versatile choice for those looking to enhance their firearm's reliability and functionality.
Based on build data

Strike Industries Extended Bolt Catch

Strike Industries Cobra Billet Aluminum Trigger Guard - Red

Timber Creek Outdoors Ar-15 Takedown Pin Set - Red

Strike Industries AR-10 Shift Pins, Black - SI-AR10-SHIFT-BK

Bravo Company Ar-15/m16 Bcm Mil-Spec 6 Position Receiver Extension

Fortis Lightweight Enhanced AR-15 End Plate, Gold - LE-BLK-K1-GOLD
Aggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Strike Industries Extended Bolt Catch | 5 | |
| Strike Industries Cobra Billet Aluminum Trigger Guard - Red | 5 | |
| Timber Creek Outdoors Ar-15 Takedown Pin Set - Red | 5 | |
| Strike Industries AR-10 Shift Pins, Black - SI-AR10-SHIFT-BK | 4 | |
| Bravo Company Ar-15/m16 Bcm Mil-Spec 6 Position Receiver Extension | 4 | |
| Fortis Lightweight Enhanced AR-15 End Plate, Gold - LE-BLK-K1-GOLD | 4 |
| Platform | Percentage |
|---|---|
| AR-15 | 75% |
| AR-10 | 12.5% |
| AR-9 | 12.5% |
| Caliber | Percentage |
|---|---|
| .223 Wylde | 57.1% |
| 5.56 NATO | 42.9% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 40% |
| Pistol | 20% |
| Intermediate | 20% |
| Rifle | 20% |
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