From the release:
A special deal for those intrepid modelers who like to magnetize their regiments, the set gives you the universal carriage with all the parts to make the heavy Bolter, Twin heavy Stubber, Laser Cannon and Auto Cannon. Each specialised gun can be swapped out depending on your battle needs.
Multi part Heavy Weapons for 28mm troops, adding some serious punch to your artillery and Heavy Weapon batteries.
Designed and sculpted by Jake Schneider. Hand cast in high quality resin.
Supplied with 60mm round plastic base.
Crew and alternate wheel options available separately.