GWS 556 conversion kit for TM SIG 552, DIY question.

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Hello Guys,

I have a GWS 556 conversion kit. Through luck really, as I got it off a mate who wasn't going to use it. I'd like to use this, and as I understand it, it is to convert a TM SIG 552 into the 556 variant.

I guess my question is, do I need the full TM 552 to do this, or is there a cheaper DIY approach/solution, where I could build up the rest of the weapon with parts?

It seems to me I will be replacing a lot of the original weapon minus the internals, grip and trigger parts.

The conversion kit comes with the following parts if it helps:

1x SIG-556 full metal upper receiver with top mount rail
1x SIG-556 full metal lower receiver with mag release catch
1x New style M4 tactical telestock with metal buffer tube
1x SIG-556 Fiber reinforced handguard set with 2x side & bottom rails
1x Metal receiver block with steel outer barrel & flash hider

Just curious, If I have to hunt out a full 552 for it, then I will. But it might also be fun and educational, if it were possible to build up from parts.

I have experience with stripping, rebuilding and replacing parts on ICS weapons. But not done many conversions.


Thanks
L