Advanced Technology International is a well respected and well know after market manufacturer. ATI makes some of the best quality and highly desirable after market accessories. ATI's commitment to innovation and quality are the reason that individuals continue to purchase ATI parts an accessories. This particular item is Carbine Buffer Spring and is compatible with Mil-spec, Commercial, or Hybrid Receiver extensions.

Specifications and Features:
ATI AR-15 Carbine Buffer Spring A.5.10.1030
Carbine Buffer Spring
Works with Commercial, Military and Hybrid Buffer Tubes
Virtually Indestructible
Manufactured in the USA
Limited Lifetime Warranty
Natural Finish

Fits:
AR-15 Carbine Receiver Extensions (Mil-Spec, Commercial, or Hybrid)