The Extra Extra Power buffer spring is characterized by its robust Orange color and is designed for high-caliber firearms. It is more resilient than the Red version, making it ideal for firearms enthusiasts and professionals seeking optimal weapon performance. Originally crafted for .308, 6.5 Creedmoor and .260 Remington calibers, it excels in heavy bolt carrier group (BCG) carbine DPMS pattern applications. Specifically tailored for standard 7 inches depth M4 extension tubes and short 2.5 inches buffers including aftermarket heavy buffers in robustly gassed 16 inches - 18 inches mid-length (ML) gas carbine platforms. The Orange buffer spring is also effective for fine-tuning over gassed carbines across various heavy calibers. Compatible with AR-10 pattern tubes using 3.25 inches buffers and lesser calibers like 5.56, offering versatility across different firearm configurations. Provides the strength and durability needed for high-pressure environments, enhancing firearm reliability and performance.

The orange buffer spring is engineered for heavy bolt carrier group (BCG) carbine applications in .308 Cal, 6.5 Creedmoor and .260 Remington calibers, utilizing standard 7 inches M4 extension tubes
This is appropriate for adjusting over-gassed carbines in AR-10 pattern tubes with 3.25 inches buffers or for smaller calibers such as 5.56x45mm
The Sprinco USA spring kit comprises an enhanced power buffer spring and dual extractor springs to improve performance

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