Sprinco Usa197559422
Sprinco Usa Spring Kit-Buffer&Xp 5-Coil Bolt Extractor Spring$24.70
Availability: In Stock
Current Stock: Out of stock
The Sprinco USA Spring Kit–XP Buffer with HD 5-Coil Bolt Extractor Spring is a heavy-duty AR buffer spring engineered to solve reliability issues in modern rifle builds running non-standard or high-recoil calibers. Originally designed in 2006 to address M4 carbine function challenges in demanding operational environments, this extra-power spring delivers approximately 25% greater load characteristics than standard white springs, making it the go-to choice for shooters pushing their AR platforms beyond factory specifications.
If you're running a 9mm, 6.8 SPC, 6.5 Grendel, .450 BM, .450 SOCOM, or .500 Beowulf upper, or working with a Colt LE6920 or similar platform that demands more spring support, the XP buffer spring addresses the real-world tuning challenges that come with non-standard loadings. The heavier spring rate helps cycle reliability and reduces felt impulse—critical when your ammunition or platform deviates from mil-spec norms. That said, every rifle has its own personality: port size, barrel length, and ammunition power factor all play a role in whether this spring is the right fit for your build.
Before installation, Sprinco provides tuning guidance documents to help you dial in the right spring for your specific setup. This isn't a bolt-on-and-forget upgrade; it's a tuning tool for builders and shooters who understand that reliability is earned through careful component selection. If you're diagnosing short-stroke or cycling issues in a heavy-caliber or tight-tolerance AR build, the XP buffer spring is worth exploring—just take time to follow their recommendations and test thoroughly at the range.
The XP spring is commonly used in 9mm, 6.8 SPC, 6.5 Grendel, .450 BM, .450 SOCOM, and .500 Beowulf builds, as well as platforms like the Colt LE6920. However, individual rifle behavior varies based on port size and ammunition power factor, so Sprinco recommends consulting their tuning documents for your specific setup.
An extra-power spring like the XP helps address reliability issues in AR platforms running non-standard calibers, heavy ammunition loads, or tight-tolerance builds where standard springs cause short-stroking or erratic cycling. Sprinco provides tuning guidance to help you determine whether the XP is right for your rifle.
The kit includes the extra-power XP buffer spring and an HD 5-coil bolt extractor spring, along with reference tuning procedure documents to guide installation and setup.
SKU: 197559400 • Weight: 0.17oz
Availability: In Stock
Current Stock: Out of stock
The Sprinco USA Spring Kit–XP Buffer with HD 5-Coil Bolt Extractor Spring is a heavy-duty AR buffer spring engineered to solve reliability issues in modern rifle builds running non-standard or high-recoil calibers. Originally designed in 2006 to address M4 carbine function challenges in demanding operational environments, this extra-power spring delivers approximately 25% greater load characteristics than standard white springs, making it the go-to choice for shooters pushing their AR platforms beyond factory specifications.
If you're running a 9mm, 6.8 SPC, 6.5 Grendel, .450 BM, .450 SOCOM, or .500 Beowulf upper, or working with a Colt LE6920 or similar platform that demands more spring support, the XP buffer spring addresses the real-world tuning challenges that come with non-standard loadings. The heavier spring rate helps cycle reliability and reduces felt impulse—critical when your ammunition or platform deviates from mil-spec norms. That said, every rifle has its own personality: port size, barrel length, and ammunition power factor all play a role in whether this spring is the right fit for your build.
Before installation, Sprinco provides tuning guidance documents to help you dial in the right spring for your specific setup. This isn't a bolt-on-and-forget upgrade; it's a tuning tool for builders and shooters who understand that reliability is earned through careful component selection. If you're diagnosing short-stroke or cycling issues in a heavy-caliber or tight-tolerance AR build, the XP buffer spring is worth exploring—just take time to follow their recommendations and test thoroughly at the range.
The XP spring is commonly used in 9mm, 6.8 SPC, 6.5 Grendel, .450 BM, .450 SOCOM, and .500 Beowulf builds, as well as platforms like the Colt LE6920. However, individual rifle behavior varies based on port size and ammunition power factor, so Sprinco recommends consulting their tuning documents for your specific setup.
An extra-power spring like the XP helps address reliability issues in AR platforms running non-standard calibers, heavy ammunition loads, or tight-tolerance builds where standard springs cause short-stroking or erratic cycling. Sprinco provides tuning guidance to help you determine whether the XP is right for your rifle.
The kit includes the extra-power XP buffer spring and an HD 5-coil bolt extractor spring, along with reference tuning procedure documents to guide installation and setup.
SKU: 197559400 • Weight: 0.17oz