I'm looking at getting an integral .22 pistol, I got a thread going on here about it trying to figure out the best one. It's heated, but I'm getting some good info out of it that way. There's some guys on there that have lots of experience with these.
Lots of folks are saying they have twist ons that work as well as the integrals though. I really wish I had more to tell you.
I'd have to go grab the box out of the closet, but I'm pretty sure the papers that came with it say not to do it. Almost positive. In fact, pretty sure it says to not use anything but jacketed bullets that are stabilized properly. Handloads are okay it seems.
The SDN6, it is really a damn nice can but the mounts are shit and AAC abandoned the design basically so I can't recommend one anymore --I mean, from personal experience, I wish I could take it back. I wish I'd just gotten a couple of nice thread on cans instead. I don't know how the 90T or whatever tooth they are using now works. I figure that it'll fix some of the motion since they don't wanna bother with tolerances, but finer teeth wear out faster and if you ever rub that against a granite stone I bet it'll fuck it right up (and that'll be the bearing surface at the muzzle just so you know). At the range it isn't a problem, in the field it is. There is a way to fix the mounts, but you shouldn't have to go through all that and AAC likes to void the entire warranty if you do --they can't find out you modified the mounts. Once modified, it locks up tight enough that a 6.5G rifle that averages .33MOA gets about 1MOA with it. An M4 I have that averages 1MOA opens up to about 2, about the same with a .300BLK (not enough data yet). All drop a little bit but the 6.5G, it just opens up. I won't even use it on an FAL because the mount is so damn loose I'm afraid of trying it and AAC won't warranty the endcap (and I think baffle strikes) and I just don't feel like grinding that one down. The only thing nice I can say about the can is that it is pretty quiet with 6.5G, 5.56, and damn quiet with .300BLK subs, just "pop". .300BLK supers and M855 all sound about the same to me, about like an unsuppressed .22lr. A couple of guys had an AWC and a (Gemtech? I forget right now, it may have been an AAC) for a 9mm and .45. My buddy said mine was quieter on rifles, go figure. I truly expected more out of the huge .45 and 9mm cans.
It's also damn heavy for a .22 IMO. I don't think you need much to suppress the .22 and I personally would prefer titanium.
In a do over, I'd have gotten the TBA or Elite cans (particularly for the centerfire rifles) heard nothing but good about both of them, but I'd be lying if I said I didn't like the diversity of this suppressor, and I can say it is quiet enough to please. I want a take apart .22 can because I plan on grossly overusing it and it's just for fun. They get nasty. Lots of folks like the sealed ones though.