Features:

Heat Treated, Stress Relieved and Dual Stage Shot-Peened Post Winding
Impregnation / Plating with Re-Micronized Molybdenum Disulfide Formulation
Increased "Lock Time" for Faster Sight Recovery and Platform Stability
Consistent Spring Pressure Throughout the Duty Cycle of the Spring, Resulting in Fewer Malfunctions Related to Spring Operation
Improved and Consistent Cyclic Operation. Spring Will Not Change Performance for Many Hundreds of Thousands of Rounds
Greater Resistance to Heat-Induced Performance Degradation
Reduced Cyclic Rate with Enhanced or Extra Power Springs and Reduced Bolt Bounce with Optimal Spring Weight Selection
Reduced Operating Cost, as Replacement Springs Are Not Needed During the Life of Your Upper Receiver Assembly
Available in Multiple Spring Weights (Color-Coded):

Reduced Power (Yellow Spring) - Approximately 20% lighter than a standard Mil-Spec carbine spring. Ideal when paired with a lightweight bolt carrier and an adjustable gas block to minimize recoil.
Standard Power (White Spring) - Equivalent spring load to a brand-new Mil-Spec M4 carbine spring. A perfect upgrade if you want to maintain the performance of a "fresh" Mil-Spec load spring without worrying about replacement.
Intermediate Power (Red and White Spring) - Sits between the design loads of the White and Blue springs. Ideal if you prefer Mil-Spec spring load but want to enhance performance slightly.
Enhanced Power (Blue Spring) - Approximately 15% greater than a standard Mil-Spec carbine spring. When paired with a heavier buffer, it will most likely fix the issues caused by an over-gassed factory AR-15.
Extra Power (Red Spring) - Approximately 25% greater than a standard Mil-Spec carbine spring. This Springco red spring is commonly used in 9mm, 6.8 SPC, 6.5 Grendel, .450 BM, .450 SOCOM, .500 Beowulf, and Colt LE6920 specimen carbines.

Specifications:

Material: ASTM Grade A877 Certified Valve Quality Chrome Silicon Wire Stock
Outer Diameter: 0.92"
Inside Diameter: 0.78"

Compatibility:

Carbine buffer tubes
Pistol buffer tubes

If you have a carbine of any caliber with a horizontal case ejection trajectory in the 12:30-1:15 o'clock range, you won't be able to hit the optimized 4:00 o'clock trajectory with spring and buffer selection (mass) alone. You can install an adjustable gas block or a port resizing device to reduce gas volume before fine-tuning with springs and buffer weight.

horizontal case ejection trajectory chart

Includes:

1x Sprinco AR-15 Carbine Buffer Spring (spring weight of choice)

Details:

Your AR-15 is one of the most customizable, reliable, and affordable platforms out there. Tinkering with it to get maximum performance is one of the joys of ownership. But once you start swapping stock Mil-Spec components in and out of your rifle or carbine, you may notice some quirks and even malfunctions. Your buffer spring might be the root of it, an overlooked component that's deceptively simple.

A Spring Is A Spring, Right?

Not quite. This Sprinco buffer spring is a necessary bit of kit with a high-tech pedigree that would make a mechanical engineer salivate. Sprinco's high manufacturing standards ensure your new spring lasts as long as your upper receiver, thanks to true shot-peening and molybdenum durability. You might see it labeled a Springco spring in some searches, but either way, it's built to hold its oomph through a few hundred thousand rounds without losing performance.

Expert Gear For Expert Tuning

If you're upgrading your rifle's internal components, chances are you're a knowledgeable shooter with a specific goal in mind. This Sprinco buffer spring comes in multiple color-coded weights tailored to your build, whether you're running a handy 9mm or squeezing more modern performance out of a trusty 5.56mm. Pick the weight that matches your gas system and buffer, and Sprinco's spring will do its part no matter your shooting style or purpose.

Finish the Job Right

A new Sprinco buffer spring pairs well with a matched AR-15 buffer or a fresh buffer tube if you're rebuilding the whole system instead of just swapping the spring. Wing Tactical stocks the rest of what you need to dial in your carbine's cycle rate and get it running the way it should.