
Availability: In Stock
The Sprinco USA Reduced Power Kit Buffer 4-Coil Bolt Extractor Spring is a lighter-duty alternative to standard buffer springs, engineered through collaboration with leading ammunition manufacturers and professional gunsmiths. If you're running specialized ammunition, training loads, or reduced-power rounds through your AR platform, this yellow-coded spring delivers the reliability needed without the resistance of a full-power setup. The design is approximately 20% lighter than Sprinco's standard white spring, making it the consensus choice after rigorous field evaluation by industry experts.
This reduced power buffer spring shines in training environments where shooters rely on low-power ammunition or training-specific rounds that generate less bolt velocity. By pairing a lighter spring with proper tuning—gunsmiths recommend enlarging the gas port for optimal reliability—you gain better control, reduced recoil impulse, and more predictable cycling. It's a smart choice for shooters who want their AR to run cleaner and softer without sacrificing function.
Sprinco's 4-coil design maintains the proven reliability of their buffer spring lineup while offering the reduced-power characteristics modern training and specialty ammunition demand. Whether you're working through a case of low-recoil rounds or setting up a dedicated training rifle, this spring gives you the tuning flexibility to dial in your platform exactly.
| Brand | Sprinco USA |
| Type | Buffer Spring |
| Configuration | 4-Coil |
| Power Level | Reduced |
| Color Code | Yellow |
| Relative Weight | ~20% lighter than standard white spring |
This spring is designed for low-power ammunition, training loads, and specialty rounds that generate less bolt velocity than standard full-power cartridges. It's also compatible with training-specific rounds used in reduced-recoil training operations.
Yes, but gunsmiths who helped develop this spring recommend enlarging the gas port for optimal overall reliability when running reduced-power loads. Proper gas tuning ensures consistent cycling and function.
The yellow reduced power spring is approximately 20% lighter than Sprinco's standard white spring, providing less resistance and a softer recoil impulse—ideal for training and low-power ammunition.

SKU: 197559389 • Weight: 0.17oz





Availability: In Stock
The Sprinco USA Reduced Power Kit Buffer 4-Coil Bolt Extractor Spring is a lighter-duty alternative to standard buffer springs, engineered through collaboration with leading ammunition manufacturers and professional gunsmiths. If you're running specialized ammunition, training loads, or reduced-power rounds through your AR platform, this yellow-coded spring delivers the reliability needed without the resistance of a full-power setup. The design is approximately 20% lighter than Sprinco's standard white spring, making it the consensus choice after rigorous field evaluation by industry experts.
This reduced power buffer spring shines in training environments where shooters rely on low-power ammunition or training-specific rounds that generate less bolt velocity. By pairing a lighter spring with proper tuning—gunsmiths recommend enlarging the gas port for optimal reliability—you gain better control, reduced recoil impulse, and more predictable cycling. It's a smart choice for shooters who want their AR to run cleaner and softer without sacrificing function.
Sprinco's 4-coil design maintains the proven reliability of their buffer spring lineup while offering the reduced-power characteristics modern training and specialty ammunition demand. Whether you're working through a case of low-recoil rounds or setting up a dedicated training rifle, this spring gives you the tuning flexibility to dial in your platform exactly.
| Brand | Sprinco USA |
| Type | Buffer Spring |
| Configuration | 4-Coil |
| Power Level | Reduced |
| Color Code | Yellow |
| Relative Weight | ~20% lighter than standard white spring |
This spring is designed for low-power ammunition, training loads, and specialty rounds that generate less bolt velocity than standard full-power cartridges. It's also compatible with training-specific rounds used in reduced-recoil training operations.
Yes, but gunsmiths who helped develop this spring recommend enlarging the gas port for optimal overall reliability when running reduced-power loads. Proper gas tuning ensures consistent cycling and function.
The yellow reduced power spring is approximately 20% lighter than Sprinco's standard white spring, providing less resistance and a softer recoil impulse—ideal for training and low-power ammunition.
SKU: 197559389 • Weight: 0.17oz
