Minifig.Cat have just announced their new November 2013 Release which contains more fantastic guns and accessories:

1. MP5A3-Submachine Gun
2. MP5A5 NAVY-Submachine Gun
3. G21
4. TROS-BG5x-Tactical Reflex Optical Sight
5. MK-23t
6. BG50-Ammo Box
7. K9-Armored Dog Vest
8. BG Parang
9. AK74u
10.M4A1SB
11.Mossberg 590-Shotguns
12.MP5A4-Submachine Gun
13.EB14-Tactical Entry Bar
14.BG15-Boltmaster
15.Kinmen Knife
16.GPNVG-18-Night Vision Goggles

There is also a Weapon Systems Pack that includes the following:

1.MP5A3
2.MP5A5 NAVY
3.MP5A5s
4.MP5A4
5.MP5KS
6.MP5K
7.MP5SD6
8.MP7
9.MP9
10.MP10
11.UMP45
12.Silencer (BD23) X2
13.TROS-BG5x