My first original gun in quite a while! Feels good to design them again.
This weapon is an assault rifle meant to fit in with a near-future american setting. If you want to know more, you'll have to play the game when it's out.
I do a lot of research before I design a gun, and this one is no exception. I not only have many books about them in my studio, I also have a few actual rifles and pistols to use for reference. Photos are good, but having a physical analogue is much better.
This design employs some conventional and some modern/futuristic tech. The internal components are made from a light-weight, vibration and heat resistant metal alloy. The outer body is made from condensed high-durability plastics. Most of the gun's attachments are fully modular and customizable. This load out features a retractable stock, a translucent 30-round ammo clip. (remember the bullets in a clip go up and around so there are actually two layers of rounds in a clip). The trigger for the co2 powered grenade launcher was an idea I came up with. Instead of the soldier having to move his whole hand, with this layout, he/she only has to rotate the firing finger down slightly and pull up. The top rail system can mount a variety of sights and scopes, currently it is fitted with a rear peep sight and a front optical sight. The lens is a special glare resistant glass with a thin liquid crystal overlay that can be set to a few helpful settings, such as a range finder. Barrel can be fitted with a suppressor, and the grenade launcher can be swapped for a fore-grip or a 12ga. shot gun.
I'll make sure to forward this, though
I'd like to model this in 3D just to practice and learn the next gen weapon modeling techniques from your concept and If successfully done I'll link it here for sure.
At first glance, the magazine looks fine, until I noticed its angle. The top end of the magazine isn't level with the rest of the gun, which means the rounds will be loaded butt-end-up into the firing chamber instead of flush and even. Although you got the detail of stacked ammo correct, you forgot that the bullet has to be feed smoothly into the weapon. A simple fix is to either have a strait box mag (on rifles like the G3 and Barret variants), or simply tilt your 'bananna' mag so that the top end is flush with the barrel.
Speaking of flush, another small detail to consider; currently, the ejection port isn't on the same level as the barrel. A simple way to fix this would be either to invert the barrel (so that the gas tube is above the barrel, and not below it), or to move the ejection port up to where the barrel is. This would also help with the position of the stock, as it could imply that the bolt and spring mechanisms fit inside it, just like how modern day AR-15 platforms work.
Great looking design though.
But a quick FYI, clips and magazines are different things. Magazines are devices that hold multiple cartridges, and are most easily identified by having a spring. (All repeat loader weapons have a magazine.) Some magazine are removable, such as the box magazine in your drawing, and some integral, like the tubular magazine in a 12ga. pump action.
A clip, on the other hand, is a whole piece of metal used to make loading a magazine easier. A clip is never built in to a weapon. Some different kind of clips are stripper clips, used to quickly load box magazines, and drop in clips, which drop directly into a magazine designed to fit it. (Like the M1 Garand clip.)
Of all things, the stock is probably my favorite part. Rather original.