| CPC F41A 21/36 (2013.01) [F41A 21/325 (2013.01); F41A 21/30 (2013.01)] | 38 Claims |

|
1. An apparatus, comprising:
at least one part providing a threaded opening to couple onto an external thread of a firearm part, the threaded opening including a flex section; and
a fastener having a first section including a driving end, and a second section including a length of the fastener and an opposite end of the fastener;
wherein the second section of the fastener urges the flex section to clampingly lock internal thread of the threaded opening with the external thread of the firearm part; and
wherein the second section of the fastener pushes on the flex section.
|