Amen on the less strength of the "bolt-on" set-up, however, like I said, then you're looking at $200 or more with the vert grip. I had the GG&G rail mounted on my M4-gery for awhile and was pleased with the overall effect/strength for what it was. Is it as strong as my ARMS #50? No it is not. But if you're unsure if you're a candidate for the vert grip, an investment of $30-35 is better and might fill the need or answer the question rather than jumping in the deep end and finding you're not fond of the vert grip set-up.
NO FLAME INTENDED, just my .02$ again...
FYI, I discarded(sold off) my GG&G orig set-up for the ARMS #50 for my EoTech and ARMS #40 rear sight.
VERY nice
STRONG set-up, but not cheap. I found I really liked the vert grip, so I made the plunge for the best (not trying to start an argument on which is better!
). That SureFire forearm system new to the market does look very interesting and will prob be a BIG seller!
Cheers to all.