Kit includes everything for a new .223/5.56 AR15 Rifle build or to convert your current AR15 Carbine to a A2 AR15 Rifle buffer tube recoil system.

Note: Converting a carbine length gas system to use a A2 Rifle length buffer system may cause reliability issues.

• An A2 Rifle Buttstock Extension Tube
  • Material: 6061-T6 Aluminum
  • Finish: Hardcoat Anodized Black
• Standard .223/5.56 Rifle Buttstock Buffer Spring
• Standard 5 oz.  Rifle Buffer Body totaling a length of 5.25". 

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