I agree with BB.
I've used & just received SI products for a long time & all of them have been solid, and I've only found one, the
"Link Curved Fore Grip", that doesn't seem to work for me (although its solid) in any application (multiple) that I've tried it on.
The Strike Industries LINK-CFG (Curved Fore Grip) design was derived from our Cobra Tactical Fore Grip and features SI’s (patent pending) LINK system which is mountable to both M-Lok and Keymod rails. The LINK-CFG is constructed of 6061T6 aluminum- making it ultra-durable for continued use...
www.strikeindustries.com
Otherwise, SI makes very useful products.
My .02