I've rounded up a second collection of gun models I made for Bitgirl. The collection includes an M4, an M98B sniper rifle, an 870 shotgun, and the RPG7 that was featured in Sgt. Cheeseman.
I unfortunately cannot upload zip files on Sketchfab anymore since it requires a premium account to be able to do so, therefore the gun models will be only available in FBX format. The new gun collection can be downloaded here >>> pinmoBOT's Gun Collection 02. Feel free to use these for drawing reference, for making 3D animations, etc. The only thing I ask of you in return is to credit me as their original modeler. If you can do it, then let these be of aid to you in your journey!