H-10 Rosvo

H-10 Rosvo
Type	Pump-action shotgun
Place of origin	Astronea
Service history
In service	1990-present
Used by	Astronean Armed Forces
Production history
Designed	1988
Manufacturer	Rosvo Sporting Arms
Unit cost	$300
Produced	1989-present
Specifications
Length	946 mm (37.2 in)
Barrel length	300 mm (12 in)
Cartridge	12 gauge, 16 gauge, 20 gauge, 28 gauge, or .410 bore
Action	Pump-action
Muzzle velocity
Effective range	23 m (25 yd)
Feed system	4+1 internal tube magazine, 8+1 extended tube
Sights	Bead, twin bead, adjustable open sights

Based on the H-55 Rosvo, the H-10 Rosvo is a modernized combat shotgun for use in close-combat scenarios. The H-10 can be quickly modified with different barrels, magazine tubes, and stocks for different purposes, such as urban combat and door breaching.

The H-55 was designed as a self-defence and hunting shotgun, but quickly gained popularity with police and military personnel. Its heavy hitting 12 gauge shells were devastating in close-quarters, and the ability to load a variety of lethal and less-lethal rounds was well-suited for riot control. It became a common sight in the hands of law enforcement and prison guards, becoming a staple in police department inventories across Astronea.

Since its introduction in 1955, the H-55 has seen various combat service throughout the years, proving itself as a capable weapon in close-quarters, reliable and powerful, able to be adapted to fit a variety of roles. One of its key downfalls however was its age. By the 1990s, the H-55 had been in service for over 40 years, and it was falling out of favour as a combat shotgun in the face on new, more modern designs.

To combat this, Rosvo, who designed and manufacture the shotgun, began an initiative to bring the design into the modern age. Consulting with military and police veterans, they took feedback from user experience with the H-55 and observed modern trends on the firearms market to design a modular combat shotgun for the new age of warfighter. The result was the H-10, a new state of the art weapon on a proven design. It featured new furniture and the ability to change barrels on the fly. Its magazine tube could be extended to increase capacity significantly.

The H-10 has become the standard combat shotgun of the Astronean Armed Forces, and is a popular choice for law-enforcement due to its adaptable nature.

Design

The H-10 is adaptable to a multitude of situations, being heavily customizable with the introduction of a piccatiny buffer tube stock which will fit a variety of adjustable designs. Rosvo did away with the wooden furniture of the H-55 and instead opted for polymer, which reduced the weight considerably and prevented warping from heat and humidity, making the weapon more suited to extreme environments. T

The pump was redesigned to be lighter and faster, more responsive to allow for faster chambering of rounds, increasing the weapon's rate of fire. Piccatiny rails were also added to the pump, allowing for the mounting of illumination devices and foregrips.

Rosvo designed a new barrel fixing system to the receiver, allowing for the rapid changing of barrels for different lengths and bores. This allows for different caliber shells to be fired, such as .410 bore and 20 gauge.

The addition of a pistol grip improved the ergonomics of the shotgun significantly, making the weapon more comfortable to hold and manipulate in the user's hands.

The H-10 can fire a variety of different shells, such as 00 Buckshot, 12G slug, incindiery, flechette, HE fragmentation, birdshot and a collection of less-lethal rounds such as beanbag and rubber slugs and pellets. The H-10 is frequently used for riot and crowd control for this reason. A specially designed breaching slug round is well suited to the specially designed shotgun choke on the barrel, which is intended to be placed against doorframes. When fired, the low velocity slug round will blow any lock or hinge off any non-reinforced doorframe, allowing the door to then be kicked in and breached. This adds a new dynamic entry option for close-quarters fighting.