So here is a piece of wargear I plan on introducing into my hopefully upcoming campaign.
Auto Loader (working name for it, open to more sexy name suggestions)
Many Space Marines, particuarly Assault Marines, will take to the field of battle with a pistol in one hand, and a melee weapon in the other. While this gives them much versatility in combat, this has one obvious draw back.
No free hand to reload their pistol.
Rather than taking the time to sheath their chainsword or power sword, or fumble a magazine with an oversized powerfist, this device will reload the weapon for the Marine.
The Auto Loader is worn on the belt, and will hold up to nine bolt pistol magazines or plasma pistol, hand flamer, or inferno pistol fuel tanks. When the Battle Brother runs low on ammo or fuel, he simple lowers his weapon to his belt and presses the activation rune on the Auto Loader. A small mechanical arm will grab the used magazine or tank from the weapon, while a second one removes a fresh one from the Auto Loader and loads it into the weapon. The remaining magazines or tanks in the Loader are moved up while the first arm places the spent magazine or tank at the end.
This device operates in one, fluid motion, so a Battle Brother making use of this cannot benifit from the Rapid Reload talent or anything else that would allow him to reload faster.. The reload time will be the standard time listed in the Deathwatch rulebook for that weapon.