Very simple guys. It's called Krylon Ultra Flat Camoflauge paint. You can pick it up at any ACE hardware store. Make sure you clean your gun first. Time-wise, follow the instructions on the can. Basically you slowly put on light little coats on the gun, I spray form 8 inches away. Don't just start on one part of the gun. Spray from the stock all the way to the barrel moving the decently fast. DO NOT SPRAY ON HEAVY. IT WILL DRIP AND LOOK OUGLY!
Light little coats is the key. For the heck of it, spray on light little coats and let that dry for a minute and put on another coat until all the black is gone.
Color choices are yours but the first color I put on was Khaki and as you can see I totally overdid it and now there isnt even a hint of khaki, lol! What you see is Olive Drab(OD) and Brown.
Later on while I was putting intarded combinations of brown and OD I had the bright idea of making stencils. So basically collect the local foilage and place them up on, next to your gun and spray away, haha. Again, your choice on colors.
I don't know what's wrong with you people, lol, I thought my paintjob came out horrible but w/e, haha!