This is done on a select line we offer to exclusive distributors.
The following is a an info blurb we put out with the rifles...
What is W.A.S.P.?
W.A.S.P., or Weapon Armored Surface Protection, is simply a modern alternative to chrome lining.
W.A.S.P. is a proprietary finish that provides the same durability and ruggedness as chrome lining, but at a fraction of the price.
Additionally, W.A.S.P. not only protects the inside of the barrel, but the outside as well. Its matte black finish does not reflect.
CMMG WA.S.P. corrosion resistance outperforms conventional chrome lining and provides, rugged reliability and durability essential to military grade firearms.