The story itself is somewhat good and has potential but I can't tell due to how you have written everything... PLEASE GET AN EDITOR!!!
I don't want sadden you much but your grammar and spelling is terrible. I can't read the story well so I have no idea what is going on. Please get an editor for your and the readers' sake.

That is all the advice I can give from what I've read.

Dude you really need an editor.

I don't know if this was mentioned to you before but
"No, I'm serious here I don't know what's going on am I dead, dreaming, or it this the real life is this reality"
The lyric is actually "is this the real life or is this just fantasy" I know it's a very minor thing but I'm a fan of Queen and I just had to tell you.

This was a awesome &sweet chapter Iloved reading it and can't wait to see what happens next.It was awesome to find out Glanda was a princess and that Sassy Saddles is joining the herd,I can't wait to see who will be next to join.

WTF!

I have Two thousand Seven hundred and Eighty-eight weapons

do you have any idee how much space that would require!

i1.wp.com/craphound.com/images/5414090216_5a165ab50e_z.jpg?w=970
this pic shows about 300 rifles, you would need about 10 of them for all the guns and ammo.
In other words he wouldn't have much of any space left to live in his house

"How dare you first you harass then threaten our dear friend King Grindel because he is not a pony then you have the gall to threaten our beloved Brian and our herd mate Rarity I should cast both of you into the deepest pit in all of Tartarus for this you mumph," Luan yelled before Celestia used her magic to silence her sister.

Luan?