Poly Technologies Reproduction Chinese Slant Muzzle Break Black. This slant break looks identical to the 80's slant breaks with a nice improvement on the threads. A lot better quality than the original and no one will know the difference. Specifications for Poly Technologies Reproduction Chinese Slant Muzzle Break: Manufacturer: Poly Technologies Color: Black Package Contents: Poly Technologies Reproduction Chinese Slant Muzzle Break Poly Technologies 710015: Reproduction Chinese Slant Muzzle Break Black