Have one of them, and picked up a FN2000 also. It shot incredible right out of the box. At 25 meters, the integral scope was perfectly zeroed to put the shots all in one hole. Trigger pull is great, balance is perfect. Put 200 rds through the first day with no malfunctions; and that was with S&B and WOLF... got it through Florida Gun exchange with the limited edition pelican case, knife.. and they had a deal where not only did you get the 10,20,30 and 42 rd. mags but they gave 5 extra thirties in to boot.. Highly recommend it.. had two origional steyr Augs, and I like it better, forward assist works great for silent chambering. FN2000 is also an excellent weapon. MSR feels a bit more secure in the hand with the forward grip compared to the massive front of the FN, but the FN with the C-more heads up sighting system also worked great. did have a few malfunctions with it. but I guess it was the break in period?? It DOES USE M16 mags, but not P-mags or anything plastic.. I highly recommend the HK 416 mags which are metal and have the improved follower. Can't use a 20rd mag in the FN.. too short.. gets stuck. honestly, of the latest firearms I've aquired.. I really like the Sig 556 commando best. great feel, great trigger, a bit front heavy, but not bad.. only get an ACE folding stock.. magpul stock had to be sent back and replaced after only a short time...
You won't regret the MSR Stg556.. Get one while you can.. they are going up. and this is only the front end of things from what word is. Wait till the exectutive order comes through banning all this stuff. Gun shops are out of everything around here...