No prob on the Necro, as long as you state good intentions of resurrection.
Quite honestly, there is so much miscommunication on the internet about the various M24s' compatibilities, even this thread shows. But I've dug up enough info to be more certain of my answers than I was when I first posted in this thread.
Basically, this is what it is:
-The Classic Army M24 was the OG of M24's. There comes along a gun that aftermarket companies like SO MUCH that they decide to expand on it, and the CA M24 was one of those. Though it features a good amount of APS compatibility (about as much as other guns: cylinder and cyl. internals, APS-2 magazine), it has a lot of proprietary parts also. However, there is a strong aftermarket for the M24 that can upgrade these proprietary parts, enough to have the internals be completely aftermarket upgraded.
-The Echo 1 M28 was a later M24 model, made around the same time as the Javelin M24. However, out of all the M24 models, this gun is the furthest from the original M24. It is not CA M24 compatible at all. Rather, it is more VSR-10 compatible.
-The Javelin M24 was also a later model of the M24. Unlike the E1, this gun is modeled after the original CA M24, but there are a few differences between this gun and the CA. Also, some have claimed it to be 100% APS-2 compatible, and others say it is actually 100% CA M24 compatible. I've never owned one, but from what I've seen, I'd believe the ones that say it's CA M24 compatible, since the ones who say it's APS-2 compatible have probably only thrown in the HIGHLY COMPATIBLE aftermarket parts, like pistons or springs, that are compatible in ALL APS models.
-Comparing the unboxing and disassemblies of the Javelin M24 and the Snow Wolf M24, I can very strongly claim that the Snow Wolf M24 is either a rebrand of the Javelin, or they both come from the same OEM, since they look internally EXACTLY the same, and because they came out at the EXACT same time. Because of this, and what I stated above, the Snow Wolf will be more M24 compatible than APS-2 compatible.
That's the reason why things like APS-2 pistons, springs, spring guides, cylinders, cylinder heads, and magazines all fit in the Snow Wolf, but the triggers and hop up chambers and barrels won't. Those are the things that are proprietary, and require M24 aftermarket parts instead of APS-2 aftermarket parts.