Sprinco Usa197559423
Sprinco Usa Spring Kit-Xp Buffer &Enhanced 4Coil Bolt Extractor Spring$24.70
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Availability: In Stock
Current Stock: Out of stock
The Sprinco USA Spring Kit pairs a standard rifle-length buffer spring with an enhanced four-coil extractor spring, giving you the core recoil management and reliable extraction components AR platform shooters depend on. Whether you're running a fixed A1/A2 stock setup or stepping up to an intermediate-depth VLTOR A5 buffer tube, this kit delivers the spring rates that keep your action cycling smoothly across a range of loads and configurations.
The standard buffer spring in this kit follows mil-spec design principles and works reliably in rifle-length tubes with lighter to mid-range calibers like .223 Remington, 5.56 NATO, 6.8 SPC, 6.5 Grendel, and 7.62×39. It's equally at home in longer-barreled .308 Winchester, 6.5 Creedmoor, or .260 Remington builds—especially when paired with appropriately weighted buffers to manage recoil and cycle reliability. The enhanced extractor spring rounds out the package, ensuring consistent round feeding and reliable extraction across your shooting sessions, whether at the range or in the field.
This is a straightforward, no-fuss component upgrade for builders and shooters who know exactly what they need: proven spring performance without guesswork or gimmicks. If you're assembling an AR platform rifle, troubleshooting cycling issues, or simply refreshing worn internals with known-good parts, Sprinco's reputation for consistency makes this kit a logical choice.
| Brand | Sprinco USA |
| Component Type | Buffer Spring & Extractor Spring Kit |
| Spring Rate | Standard (Mil-Spec) |
| Tube Compatibility | Rifle-length A1/A2, VLTOR A5 (7.75" depth) |
| Primary Caliber Range | .223 Remington, 5.56 NATO, 6.8 SPC, 6.5 Grendel, 7.62×39 |
| Secondary Caliber Range | .308 Winchester, 6.5 Creedmoor, .260 Remington (with appropriate buffers) |
Yes. The standard spring in this kit is popular in VLTOR A5 buffer tubes with 4-inch A5 buffers and is compatible with the 7.75-inch intermediate depth tube.
The standard spring can be used in longer-barreled rifle-length .308 and 6.5 Creedmoor builds, though pairing it with an appropriately weighted buffer (such as H2 or H3 carbine buffers) is recommended to manage recoil and ensure reliable cycling. For unsuppressed 7.62×51, a heavier spring may be more effective.
The four-coil extractor spring is designed to provide consistent and reliable extraction across your shooting, complementing the buffer spring to round out the core recoil and feeding systems.
Yes. This standard-power kit is engineered for use with .223 Remington, 5.56 NATO, and similar intermediate cartridges in rifle-length configurations.
SKU: 197559371 • Weight: 0.19oz
Availability: In Stock
Current Stock: Out of stock
The Sprinco USA Spring Kit pairs a standard rifle-length buffer spring with an enhanced four-coil extractor spring, giving you the core recoil management and reliable extraction components AR platform shooters depend on. Whether you're running a fixed A1/A2 stock setup or stepping up to an intermediate-depth VLTOR A5 buffer tube, this kit delivers the spring rates that keep your action cycling smoothly across a range of loads and configurations.
The standard buffer spring in this kit follows mil-spec design principles and works reliably in rifle-length tubes with lighter to mid-range calibers like .223 Remington, 5.56 NATO, 6.8 SPC, 6.5 Grendel, and 7.62×39. It's equally at home in longer-barreled .308 Winchester, 6.5 Creedmoor, or .260 Remington builds—especially when paired with appropriately weighted buffers to manage recoil and cycle reliability. The enhanced extractor spring rounds out the package, ensuring consistent round feeding and reliable extraction across your shooting sessions, whether at the range or in the field.
This is a straightforward, no-fuss component upgrade for builders and shooters who know exactly what they need: proven spring performance without guesswork or gimmicks. If you're assembling an AR platform rifle, troubleshooting cycling issues, or simply refreshing worn internals with known-good parts, Sprinco's reputation for consistency makes this kit a logical choice.
| Brand | Sprinco USA |
| Component Type | Buffer Spring & Extractor Spring Kit |
| Spring Rate | Standard (Mil-Spec) |
| Tube Compatibility | Rifle-length A1/A2, VLTOR A5 (7.75" depth) |
| Primary Caliber Range | .223 Remington, 5.56 NATO, 6.8 SPC, 6.5 Grendel, 7.62×39 |
| Secondary Caliber Range | .308 Winchester, 6.5 Creedmoor, .260 Remington (with appropriate buffers) |
Yes. The standard spring in this kit is popular in VLTOR A5 buffer tubes with 4-inch A5 buffers and is compatible with the 7.75-inch intermediate depth tube.
The standard spring can be used in longer-barreled rifle-length .308 and 6.5 Creedmoor builds, though pairing it with an appropriately weighted buffer (such as H2 or H3 carbine buffers) is recommended to manage recoil and ensure reliable cycling. For unsuppressed 7.62×51, a heavier spring may be more effective.
The four-coil extractor spring is designed to provide consistent and reliable extraction across your shooting, complementing the buffer spring to round out the core recoil and feeding systems.
Yes. This standard-power kit is engineered for use with .223 Remington, 5.56 NATO, and similar intermediate cartridges in rifle-length configurations.
SKU: 197559371 • Weight: 0.19oz