That gun is fucking incredible. There was a big celebration/memorial dedication at my club, and among the many festivites, there was alot of guns at the machine gun range. One of them being a Sig 552. I asked the owner how he got his hands on it, turns out he's a Class 3 dealer. The club bought a several cases of ammo, and people were free to shoot whatever gun they want. I grabbed a box of .223, loaded up the 20 round Sig mag, put it in, and had fun. I set it on full auto, and fired in 3 and 4 round bursts, and I was amazed. It had a 9" barrel, yet it was as easy to control in FA as an M16 with a 20" barrel. There was a number of other machine guns - AK47, 2 M16s (1 w/ supressor), 2 MAC-11s (1 w/ supressor), Uzi, STG44, and a Glock 34 converted to select fire. At the 100 yard range, they had 2 MG42s, which are the most impressive beltfeds I've ever seen. I tried out an Ultimate Accuracy .50, the recoil kicked my ass. I was leaning into it, the gun tight as can be against my shoulder, and it still pushed me back a foot every time I shot. I tried another .50 at the 50 yard range, which wasn't nearly as bad, probably because the recoil pad was about 3 inches thick. I also got to try out an M1 Garand tanker, an AK74 (semi), and a SPAS-12. While I still think the SPAS looks pretty badass, I'd take a Remington 1187 over the SPAS in a heartbeat. The SPAS cycled way too slow, and felt like it was about to fall apart. Best of all, all shooting was free. My gun club rocks.