A Heavy Stubber is a slug-firing weapon based upon an old artillery design (aesthetically resembling a .50 caliber machine gun), and is fairly common and reliable. Its high rate of fire makes up for its lack of strength and armour-piercing abilities. It is an ideal support weapon for low-technology worlds that cannot maintain laser weapons in working order due to technological or resource limitations. Heavy Stubbers are often pintle mounted and used as close defence weapons on Imperial vehicles, when the rarer Storm Bolters are not available. It is often seen as a pintle-mounted armament on many Imperial Guard vehicles and is used for anti-infantry and light anti-aircraft fire. Some Imperial Guard regiments use heavy stubbers as heavy weapons for their infantry squads.
- Warhammer 40,000: Wargear (2nd Edition), pg. 37
- Imperial Armour Volume Six - The Siege of Vraks - Part Two, pg. 149
- Warhammer 40,000 Rogue Trader (1st Edition), pg. 87
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