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IGB  Carbine Barrels  (patented)

Fig. 16" IGB barrel with removed impulse chamber. Visible are Threading, ports and the Impulse Ring. Fig. (blue) Impulse Chamber and Allen screw

How does it work? 

During every shot which is fired from a standard barrel, the bullet powder usually continues to burn after the bullet exits the muzzle. This is felt by the flip and seen by the muzzle fire.

This patented barrel system permits the utilization of a longer barrel, ensuring total powder burning inside the barrel without sacrificing the operation o fthe gun, thus eliminating common malfunctions which frequently occur. By implementing these longer barrels, higher velocities are achieved while muzzle jump and recoil are greatly minimized.

Fig. Glock 17 with 16" IGB barrel and shroud

 

 

 

The IGB Patent

The IMPULSE SYSTEM uses powder gases, collected via ports in the barrel and transfers this energy via a hollow chamber (gas collector or impulse chamber) and a sliding element (impulse transfer ring) to the slide. This impulse equalizes the mass irregularities and allows reliable function even with heavier or longer barrels. 

Fig. Glock22 witht 16" IGB barrel and shroud,, shoulderstock  Carbine, front grip "Sport"

System - Use

The Impulse System was developed to equip pistols, which dispose of a Brwoning type Lock up (e. g. Glock, Colt, CZ etc) with barrels up to 40 cm (16") in length.

Moreover, these units offer for the first time the advantage of using compensators or longer match barrels in combination with standard target loads.

Fig. Glock 17 witht IGB 10" barrel and matching shroudl.

 

 

 

The shroud

The optical impression is similar to a sound suppression device. The IGB shroud, due to its open construction, does not suppress sound, nor can it be altered to do so. The IGB shroud protects the barrel or the shooters hand against burns.

...due to the lack of mass to be moved - relative to a blow back design - the long barrel combination in 9 mm Luger shoots calmly. 

.. shooting caliber .357 Sig is a little more exciting. Somewhat more kick, but not uncomfortable at all - and nowhere near the felt recoil of the Glock standard barrels in models 31 and 32. 

... It became a very fun shoot, and more ammunition as originally planned was expended due to the 30 round magazine.