I should have linked you specifically to the inventory section. Here it is:
http://social.bioware.com/n7hq/home/inventory/?name=Jinaar&platform=pc
To clarify, you need to max out each weapon to level X before it takes it out of the pool. If you've been buying nothing but spectre packs at 60k a pop, you could have bought 12 recruit packs each at 5k instead to start filling out those weapons/gear/chars. By the way,
premium spectre packs is a better value than regular spectre packs. Looks like you already have a bunch of commons... if you got those in spectre packs, that's an expensive way of buying them. Follow what I mentioned in the other post and you'll be more cost effective. Although, there is no harm in buying an occasional spectre pack to get a rare/ultra rare. Even at level I, that claymore/scorpion/wraith are good guns to work with. If you're having fun now, you're gonna have even more fun when you start to unlock some of the other characters.