Marc, you have great color and decent resolution. There is more glare than I like, but you might reduce it by using some of the suggestions below. Your choice of background is also good for bringing out the color of the gun.
Pardon me if I ramble about my photography thoughts.
If you can get more distance between the gun and the background, the camera will tend to focus on the gun, and the background cloth is out of focus.
Full length shots are the hardest, and show little of the gun. Get a couple fulllenght ones, and then concentrate on butt to lock, then go for detail shots of thimbles, nosecap, etc.
Inside shooting:
A better time of day will help with softer light. When you have a good North facing window, you get a soft light cascading in, at almost anytime during mid-day. You may need to set up some white reflecting surface like paper of cardboard to bounce the light onto some of the shaded areas.
For outside shooting, an overcast day is ideal. Again, the use of white reflecting card is very helpful to highlight certain areas that could use more definition.
If you are by yourself, use the camera's timer to give yourself enough time to get the card into position before the camera trips. Gotta have a tripod for this.
I use the tripod and timer almost exclusively. After pressing the shutter button, I let go of the camera, which helps with a real steady shot, no influence with shaky hands.
Also check out the tutorial "photography for dummies".
Acer