The Firing Line Forums - View Single Post - Want to build my first AR-15

DnPRK · February 21, 2011, 07:31 PM

Buyer beware when it comes to claims of "mil-spec".
"Mil-spec" is used as a sales ploy when it comes to commercial AR-15s.

There are material and process mil-specs for:

The chemical formulation of raw materials (steel, aluminum and plastic)
The tolerances the raw material is machined to
The surface finish of the machined part
The heat treatment of machined metal parts
The finish applied to the parts (anodize, phosphate, chrome)

Anyone can claim to sell "mil-spec" stuff, but which specs do they meet and which do they ignore because it is too costly?

February 21, 2011, 07:31 PM	#5
DnPRK Senior Member Join Date: August 24, 2001 Location: LC, Ca Posts: 1,917	Buyer beware when it comes to claims of "mil-spec". "Mil-spec" is used as a sales ploy when it comes to commercial AR-15s. There are material and process mil-specs for: The chemical formulation of raw materials (steel, aluminum and plastic) The tolerances the raw material is machined to The surface finish of the machined part The heat treatment of machined metal parts The finish applied to the parts (anodize, phosphate, chrome) Anyone can claim to sell "mil-spec" stuff, but which specs do they meet and which do they ignore because it is too costly?