I have a Sig MPX with an ILWT 4.5 inch barrel and a 4.5 inch handguard. Optic and suppressor not included. Gun comes with a single 30 round magazine. The gun has had around 750 rounds put through it. The weapon with brace is $1800. I have 11 sig mpx mag holders(8 are still in unopened packaging), a mag loader, both a backpack style bag and laptop style bag(made by H&K) for it. Both bags have a triple mag pouch and velcro straps to secure weapon. I also have a larue trigger made for the mpx with bridge. I can only include 3 pictures. I can email more specific ones if desired. Prices are broken down below. 

20 round mags are $30 each
30 round mags are $40 each
Larue trigger is $100
Each mag holder is $25
Backpack style bag is $75
HK Laptop style bag is $100
Speed loader is $20
8 inch factory handguard(not pictured) is $75
Sling is $25
$1220 dollar value for accessories.

I will sale gun with all accessories in a package deal for $2500. This is my preferred method of selling. I will entertain partial trades, but am not really looking for anything other than a sig mcx pistol in 300 blackout. 

Email with any questions