Description

Anderson Manufacturing AR-15/M4 A2 Fixed Stock Length Buffer Spring

Looking for a top quality, American made buffer extension tube spring for your AR-15 rifle? Look no further than Anderson Manufacturing Rifle Length Buffer Spring. Anderson is a leading manufacturer of performance AR-15 rifles, pistols, and parts, and their employees are some of the most experienced and skilled in the business – many of them U.S. veterans. With this buffer extension tube spring, you’ll get the perfect length for your A2 fixed stock rifle extension tube, ensuring optimum performance. Don’t settle for anything less than the best – trust Anderson Manufacturing for all your AR-15 needs.

Anderson Rifle Length Buffer Spring Specs:

  • Standard Buffer Spring
  • Rifle Length
  • Music Wire
  • Compatible with AR-15 and AM-10 Platforms
  • Made in the USA
  • SKU: D2-K020-B000

The buffer spring — also called the recoil spring — is responsible for returning the bolt carrier group to battery after each shot. It works in tandem with the buffer weight to control bolt carrier velocity during the rearward and forward travel of the operating cycle. Spring rate and free length differ between carbine-length and rifle-length configurations. Carbine springs are shorter and function inside a six-position collapsible carbine buffer tube. Rifle-length springs are longer and require a fixed rifle-length stock buffer tube. Using the incorrect spring for your buffer tube length will result in improper function and potential damage to the lower receiver. Anderson Manufacturing buffer springs are produced to mil-spec dimensions and spring rate, ensuring proper cycling with standard mil-spec bolt carrier groups and buffer weights. A fatigued spring with reduced tension can cause failures to return to battery, increased felt recoil, and erratic ejection. Replacing the buffer spring is one of the lowest-cost preventive maintenance steps available for any AR-15 and is a standard recommendation for rifles with significant round counts. The Anderson Manufacturing buffer spring is a direct mil-spec replacement that restores factory spring geometry and rate for reliable function. Pair it with a matching Anderson Rifle Length Buffer for a complete rifle-length recoil system, and browse our full Buffer Springs selection for other lengths and rates.