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Buffer springs are one of those parts people forget about until they start causing headaches, and the Sprinco Green is the fix that keeps you from thinking about it again. This is Sprinco's standard power spring, color coded green, built for rifle-length receiver extensions. It's wound from certified chrome silicon wire, the same material used in Formula One valve springs that get hammered through millions of compression cycles, so it holds up to the far gentler life it'll live inside your rifle.
What sets these apart from a plain mil-spec spring is the process. Each one is heat treated, shot peened, and treated with a proprietary molybdenum disulfide coating that cuts down mechanical wear and helps kill that annoying spring twang you hear with standard action springs. The result is a smoother, quieter recoil stroke and consistent load over a very high round count. The design loads match a brand new mil-spec spring, so you're getting factory-fresh feel that stays that way for the long haul.
The Green is made for A1/A2 fixed stock rifle-length buffer tubes running rifle-length buffers, and it's a big favorite in the VLTOR A5 system paired with the correct A5 buffer weight. It's dialed in for 5.56, but plenty of folks run it well with .223, 6.8 SPC, 6.5 Grendel, and 7.62×39 in rifle-length tubes. On some long-barrel 20-inch-plus builds in heavier calibers like .308 or 6.5 Creedmoor, it can work too, often alongside a heavier carbine buffer.
The color coding isn't just for looks. If you tinker with buffer setups often, a quick glance tells you which power spring is loaded without pulling anything apart. Add in the corrosion resistance and the reputation Sprinco has earned across countless builds, and it's an easy call for anyone chasing dependable cycling from a rifle-length gun.
The Green spring is designed for A1/A2 fixed stock rifle-length receiver extensions running rifle-length buffers. It's also a popular pick for the VLTOR A5 system when paired with the correct A5 buffer weight. It is not meant for standard carbine-length setups.
It's rated standard power, meaning its design loads match those of a brand new mil-spec spring rather than adding extra tension. The difference is in the materials and treatment, which keep those loads consistent over a much higher round count than a factory spring. Some users note it feels marginally firmer, but only slightly.
Yes, that's one of the main perks. Sprinco treats each spring with a molybdenum disulfide coating that reduces mechanical wear and eliminates most of the spring noise you hear with standard action springs. The result is a noticeably smoother and quieter recoil stroke.
It's primarily built for 5.56 and similar calibers in rifle-length tubes, but it can work on long-barrel builds of 20 inches or more in heavier calibers like .308 or 6.5 Creedmoor. In those setups, pairing it with a heavier carbine buffer such as an H2 or H3 has worked well for many builders.
| UPC | 657780250011 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 25001 |
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