recently bought a upper for a good price, The former owner said it had extrction problems.Took it home and looked it over to see what the problem was. The bore was spotless the chamber on the otherhand had never seen a chamber brush, using a verible speed drill and a couple new chamber brushes I cleaned enough built up carbon to keep a nuc sub breathing clean air for a year.
Please if your new to the AR platform make sure you clean your chamber with a brush that is design for this purpose, especially if you shoot steel case ammo. The whole wolf being bad thing was started by those how didnt clean their chamber properly before firing brass, you see steel case dosen't exspnd like brass and let carbon build in the chamber so when you switch to brass ,the brass exspand into the carbon and has to be driven out whit a clraning rod that should have been used to clean the carbon
Please if your new to the AR platform make sure you clean your chamber with a brush that is design for this purpose, especially if you shoot steel case ammo. The whole wolf being bad thing was started by those how didnt clean their chamber properly before firing brass, you see steel case dosen't exspnd like brass and let carbon build in the chamber so when you switch to brass ,the brass exspand into the carbon and has to be driven out whit a clraning rod that should have been used to clean the carbon
