These rifles are produced by PTR Industries, Inc. of Aynor, South Carolina for the law enforcement and civilian markets in the United States.

The United States Federal Assault Weapons Ban enacted in 1994, by President Bill Clinton, prohibited certain cosmetic features of the HK91, which meant that the HK91 and its variants could no longer be manufactured and sold to the US civilian market in their original configuration.

Very early models were produced directly from the Portuguese prints and were nearly identical to the HK91 with the exception of modifications for compliance with the Federal Assault Weapons Ban of 1994.

PTR moved from a business model of surplus part importation and assembly to that of a true self-reliant manufacturer, featuring in-house production.

Currently, PTR is capable of producing every machined part on its rifles at its plant, and sources other items, such as the plastic accessories and furniture, locally in the United States on tooling that it owns.

This rifle, similar to the original HK91, features an 18-inch (46 cm) heavy target barrel and fixed plastic stock.

[2] Calendar year 2011 saw the launch of another new product, the "PTR-GI", which is a throwback to the classic Cold War military styling of the original H&K G3.