The IUR Story by Retro-Arms
It was the night before Christmas and all the Danish Soliders wanted new M/10 rifles
Retro-Arms started working on IUR gas block in November 2025, its origins came from clone Instagram group chats and a few key people. The IUR first came on the market in 2006. Below we follow the Danish that ultimately adopted versions of the C8 and the M/10.
A Danish Military Annoucement about the M/10, replacing the M 95, as of April 2010
A M/08 prototype with a Cadex grip
A Colt Canada Catalog picture of a C8 CQB with a IUR Gas Block and Knights Armaement Rail, and a 10.5 inch barrel
Danish Navy Forces doing a exercise with C8 CQB rifles, using Aimpoint optics, vertical grips, KAC RAS Rails, etc
Although we see variations of this gas block in many forms in pictures from early to mid 2000sa, it was manufactured for almost a decade for various clients by Colt Canada. We choose a version of the C8 post Diemaco era rifle, we call the IUR Gas Block. IUR stands for Integrated Upper Receiver. The picture of the M/08, is so interesting because it shows the past and the future all in one. The future of monolithic designs and the past with integrated designs attached to a barrel.
The IUR Gas Block is a clone of diemaco style C8 flip up sight, both pieces are made from 4140 material. With (two) 1.75’’ Rails on the the 3 and 9 O’Clock sides of the Rifle. We chose not to add a bayonet mount on the bottom as this marketed as a civilian product. There are two Gas Block styles for sale, full uppers are for sale in 9mm and 5.56 calibers
January-18th. We are manufacturing the gas block and starting on rails
