Buffer Tube - 6.5 CM

[tksnkc]

Having issues with my 308 CM build.  Have a 18” barrel with a Mid Gas system.  Carbine buffer with standard 308 spring and weight from Aero.  Manually all is fine, live fire I have a single shot gun.  No marks, some ejections some no ejections but never a semi weapon.  Have an adjustable gas block but no help since adding it

[edgecrusher]

Need more details. Measurements on spring (and coil count), buffer and internal depth of buffer tube.

[unforgiven]

I replaced the entire recoil system with Armalite parts, receiver extention,spring and buffer on my M5 FTF  went away. That was with a NiBor BCG.