When a Loved one who is a magic user dies violently in your presence your strong emotions mixed the expenditure of there magic energy at death can transform their body into a Soul gun that allows you access to there magic to avenge their death.    Any creature can communicate telepathically with the loved one, but only when holding the Soul Gun.  The Soul Gun can look like any firearm but it doesn't use ammunition, instead you use the magic ability of your loved one to fire spells.  The player can summon their Soul Gun as a free action and cast as many spells as there loved one has spell slots (Same number as in player hand book, this is just flavor because your getting your power from your loved one).  Touch or cone spells act as shotgun rounds with touch spells only affecting a range of less than 5 ft and any area of effect acts like grenades.

Enhanced Sorcery

Starting at 1st level the character through there connection to there loved one gets 1 extra Sorcery point per level (Whatever number is given in the Players Hand Book you add 1 to it).

Soul Shot

At 1st level your loved one gives the player access to Eldritch Blast and the player can spend a sorcery point to add one effect to your shot.  At 1st level the player can pick 2 effects and can pick another one every 2 levels (3, 5, 7,  9, 11, 13, 15, 17).

Aimed Shot

You can use your innate understanding of your loved one's power to give yourself advantage on a Eldredge Blast Spell Attack Roll.

Elemental Shot

Add the effect of Fire, Ice, or Lightning element to your Eldritch Blast.

Long Shot

Increases the Range for your Eldritch Blast by 60ft.

Penetrating Shot

Allows your Eldritch Blastt to penetrate through one piece of the breakable environment (Ask your GM) to hit a target on the other side.  Examples include, thin inner walls, think wood paneling, excluding stone or brick.

Precision Shot

You can subtract -5 from your Spell Attack Roll for your Eldritch Blast for a +10 to damage

Pushing Shot

On a hit with a Eldritch Blast you push a creature or object 5 feet in the opposite direction but do no damage.

Scatter Shot

Changes your Eldritch Blast to fire in a 30ft line.  The range attack is replaced by The targets making a dexterity save and take no damage on a save.

Silenced Shot

Allows the Eldritch Blast to make no Sound.

Sniper Shot

The Eldritch Blast Crits on 19 and 20.

Trick Shot

You can use your Eldritch Blast to hit a specific target that does no damage but can effect the world.  You can force someone to drop an object in there hand, cut through a rope or cable, or cause a creature to flinch.

Silent Spell Shot

At 1st level the loved one can use Subtle Spell (determined by the player) to cast any spell silently.

Delay Spell

At 6th level your loved ones skill in there new form mixed with your own mastery of your loved ones magic allows you to fire a spell but delay it's effect until it hit's it's target.  This shot can't not miss but the target does get the spell saves the spell calls for.

Crack Shot

At 6th level you learn to aim faster while your loved one has learned to use there magic faster  allowing the player to make two attacks with there Eldredge Blast in one action.

Soul Slinger Stare

At 14th level for the cost of an action once per long rest the player can use there loved ones power to create a intimidating stare that lower's a targets AC by 5 for the entire party till there next turn.

One with the Gun

At 18th level the player can pick 2 effect for there Eldridge blast that no longer cost sorcery points to use.