IAC-132
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| IAC-132 | |
|---|---|
 | |
| Type | Bullpup Autocannon |
| Place of origin |  Licana |
| Service history | |
| In service | 2017 - Present |
| Used by | Licana |
| Production history | |
| Designer | Licanan Defense Industries |
| Designed | 2005 - 2015 |
| Manufacturer | Licanan Defense Industries |
| Specifications | |
| Weight | 8.6 kg (19 lb) unloaded / 11 kg (24.3 lb) loaded |
| Length | Overall: 950 mm (37.4 in) |
| Barrel length | 520 mm (20.4 in) |
| Cartridge | 20x68 mm |
| Action | API Blowback |
| Rate of fire | 300 RPM |
| Muzzle velocity | 500 m/s (1,476 ft/s) |
| Effective firing range | 600 meters point targeting 1000 meters area suppression |
| Feed system | 6 round box or 16 round drum magazine |
| Sights | Integrated Optic/Rangefinder |
The IAC-132, also known as the Individual Adaptable Assault Weapon, is a Licanan smart light autocannon designed and manufactured by Licanan Defense Industries. It is intended to be operated by individual troops equipped with powered armor to act as a force-multiplier against soft and lightly-armored targets. The weapon is paired with a low-powered day/night optic with an integrated rangefinder and ballistic computer, which allows it to use smart-fused munitions.
Development
Design Details
The IAC-132 is an open-bolt blowback-operated 20mm-caliber autocannon. Conventionally, a gas or recoil operated system is used in high-powered automatic weapons, however due to necessary restrictions in the size and weight of the IAC-132 to allow it to be operated by a single individual, it was decided that the simplicity and compactness of a blowback system would be preferable. The weapon uses an advanced primer ignition blowback system, in which the primer is ignited before the cartridge is fully chambered. In this system, the bolt is moving forward at significant speed when the primer is ignited. The bolt of the weapon never comes to "rest" against the chamber, its motion is stopped and reversed entirely by the force exerted by the cartridge being fired. This means that the bolt also acts as a recoil damper as well. The chamber of the weapon is elongated to allow the bolt to travel a short distance within the chamber itself as well, increasing the distance of effective travel. The bolt does not fully leave the chamber until after the projectile has traveled past the muzzle, preserving the gas seal. Despite the elongated chamber and heavier bolt, the overall effect is a reduction in weapon size, weight and complexity compared to a gas or recoil operating system.
In order to meet the size restrictions set by the Licanan military, a bullpup configuration was chosen, as a conventional layout would have resulted in a weapon significantly longer than 1000mm in overall length. Due to the relatively lightweight construction of the weapon and the heavy 20mm ammunition, the weapon has a significantly rearward balance point, especially when loaded with drum magazines. The concentration of weight towards the rear of the weapon negatively contributed to muzzle climb when using automatic fire in pre-production tests. In order to mitigate this, a large ported muzzle device was fitted to weapon. When fitted with this muzzle device, the weapon is capable of controllable automatic fire.