Posted 20 Sep 2017 This is an HK91 trigger pack modified by Bill Springfield to have a lighter pull. It is very smooth. These were sold by HKparts.net for 180-240 dollars over the years. This one has not been used in a rifle. I bought it for a project and found a PSG1 group instead. It will fit in any semi HK or PTR metal or plastic housing. Personal checks held to clear, money orders ship right away. $145 and 6.00 shipping. Thank you. Windsor, Missouri, United States Share this post Link to post Share on other sites