This can easily be seen by looking at the dirt around the gas block when the hand guard is removed. In the original AR-10 system, the gas tube pinned in a simple MIL-Spec gas block is often not tight. The gas system with a straight, unbent gas tube also has striking features. Hera Arms from Germany has developed its own gas block for its The single stage trigger has a measured pull weight of 2,100 grams due to the built-in, lighter hammer spring, which is a reasonable value for such a standard trigger. The Hera Arms MPSS Gen2 safety can be rotated 90/45 degrees. The selector is on both sides, with a voluminous lever on the right and flatter lever on the left side of the lower receiver. On the new 7SIX2 standard models, controls such as the bolt catch and magazine release are single-sided. This method of tolerance compensation is common practice in the AR world today, even if manufacturers take different approaches. In order to achieve minimum tolerances, there are two studs on the top of the pistol grip, with which the lower and upper parts can be perfectly matched. These main components are very well manufactured both inside and outside. This eliminates unattractive marks on the lower and upper receivers in continuous use.
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This is not a manufacturing error! This is because it prevents the upper receiver from hitting the lower receiver with full weight and a lot of force when the rear take down pin is removed and the rifle is opened. For example, the hole for the front pivot pin on the receiver was not drilled symmetrically but off-center. When manufacturing the receivers from 7075-T6 aluminum, the company uses modern, five-axis DMG CNC milling machines to implement the modern design. The German manufacturer is rightly proud of the fact that almost all AR platform components are manufactured in-house, so that it can be autonomous and is hardly dependent on suppliers.
Other with force when the rifle is opened, which prevents unattractive This prevents the upper and lower arms from hitting each The hole for the front pivot pin on the receiver is not drilled
The opened Hera Arms 7SIX2 1020 with the bolt carrier removed.
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