speck said: Searching for "cum suppressor" on Google Images gives only a single image/page... This very page. Which makes me think it's a made-up word.
Its not an official term, all it means is that its a multi-role suppressor. In this case, it seems the suppressor also has a laser-sight and recoil compensator (I assume that is what that big thing is) built into it.
Far as I understand it, "<noun>-cum-<noun>" is just a way of describing an object which has the appearance or functionality of several.
Mostly encounter such phrasing in spoken language rather than written and as such may not even have a widely agreed standardised spelling. Both <noun>-cum-<noun> and <noun>-come-<noun> are probably equally valid.
But yeah. It's a general phrase used for descriptive purposes, not a technical specification. Often used when encountering an object which is a portmanteau of several so I guess you could say it's kind of a made-up word if only because it's used for describing things there isn't actually a word for at the time.
tl;dr: it's a phrase used to describe an object which is a mash-up of X meets Y.
There's one thing I never understood about people slapping a suppressor on the P90. Why the hell would you even want to make a round suppressible by loading it to subsonic velocities, when its only real advantage over pistol rounds is having comparatively very high muzzle velocity -> sectional density -> penetration? You'll be effectively shooting a grossly overpriced .22 LR. And if you keep using supersonic, there's not much to gain by trying to suppress it so you'll be just carrying a super long PDW around for shits and giggles. Am I missing something here?
Heparine said: There's one thing I never understood about people slapping a suppressor on the P90. Why the hell would you even want to make a round suppressible by loading it to subsonic velocities, when its only real advantage over pistol rounds is having comparatively very high muzzle velocity -> sectional density -> penetration? You'll be effectively shooting a grossly overpriced .22 LR. And if you keep using supersonic, there's not much to gain by trying to suppress it so you'll be just carrying a super long PDW around for shits and giggles. Am I missing something here?
It looks cool, I think that is the main reason. When it comes to practical purposes, subsonic SMG has the advantage of making up for the lack of killing power with many bullets, since its subsonic (which still makes something of a noise, although in a battlefield scenario, this will be drowned out).
Subsonic+suppressor is a good way to get subsonic and lessen the noise, but there is really nothing to gain from it unless you really want to be quiet, then bringing a P-90 is kind of in conflict with that.
Not to mention you're going to have a fun time trying to see through the sites on this thing.
Anelaid said: subsonic SMG has the advantage of making up for the lack of killing power with many bullets, since its subsonic
Suppressed SMGs are completely logical, the difference in velocity between sub and supersonic loads of 9x19 are negligible and are compensated for by a heavier projectile, .45 is natively subsonic and very suitable for suppressed use.
I was talking about PDWs, specifically the P90. At subsonic velocities, any 5.7mm projectile will have horrible terminal performance and penetration. With a (comparatively) heavy 55gr bullet @ 330m/s you get an E0 of approximately 190 J. That's absolutely pathetic. I just can't see why would anyone want to do that unless they're target shooting, in which case getting a P90 was a stupid idea to begin with.
Anelaid said: Subsonic+suppressor is a good way to get subsonic and lessen the noise, but there is really nothing to gain
Suppressors work correctly only with subsonic rounds. Aside from that, from a military/law enforcement PoV, there are little to no reasons for ever going subsonic with any round that's natively supersonic, let alone a round that was designed around being really fast and is useless otherwise. Yes, you can suppress a projectile going at >c, but there's a limit to that as the sonic boom will still be audible.
I've seen people put supersonic rounds in a suppressor-setup, well criminals and the guys improvised it so that caused other problems, you can get it to work but the round doesn't work nearly as well as it should at its normal velocity since its not designed for it. I think it took 8 shots at point-blank range.
But this whole thing seems modified to hell and back, so that they would subsonic ammunition to the p90 on top of it doesn't seem too be to far of a stretch. Fallout New Vegas has enough ammo variants that a subsonic one is feasible, even if its not logical.
Yeah, the handloading was as realistic as it could get while still being fun. I'd be pretty amazed if you had to load your own SS in order for suppressors to work, though, the only game I know that incorporated this was Jagged Alliance 2 with the 1.13 mod (which is made of pure medical grade awesome, by the way).
That's the "Terminator" custom airsoft P90. All those parts were at one point made by several companies, but Matrix (the manufacturer for evike,) now manufactures and markets them both separately and as one complete kit. At least, I'm 90% positive that's what it's supposed to be.