Nemo Arms 300 Blackout Custom Carbine Buffer Spring

NEMO Arms custom .300 Blackout Carbine Buffer Spring. NEMO Arms has engineered a custom carbine buffer spring for carbine length gas systems or troublesome .300 Blackouts that are undergassed. This spring was designed around a rifle with a 16 barrel and a carbine gas system. This spring will also work with other This reduced stiffness buffer spring will allow your .300 Blackout to cycle properly with subsonic ammunition. The spring is made from 17-7 stainless steel that will not corrode and will keep its stiffness and tension longer than standard spring steel. Weight 1 lb