Having bought several of them I can only say that they are great. I buy a lot of things from BRP and don't work for them. What happened is that BRP had two barrels of Bren receivers that could not get into the country without the normal torch cutting. Well after a lot of paper work and a few other thing BRP was able to get them cut up as you see them and now up for sale. I still remember looking at those two barrels of uncut receivers.
Worth the money, I would say YES. Due to the time saving and the fact the major problem area are not cut.
If you have a MGS cut then for sure this is Great. An old style IO cut then it's more up to you and your welding skills and if you are willing to work at it.
Later 42rocker