Re: ARMS rings on SPRs.
I'm glad you have had good luck. I would say you got your money's worth.
I have had at least one-dozen SOCOM-issued EOtech 553s that were non-starters due to the levers not locking up snugly, or being too tight to close without snapping the levers.
I also had a handful (7 or 8 of 12) SOPMOD I VLI (2)s...otherwise known as the Surefire Millenium series...lights with mounts that were also not tight or too tight.
I am not sure why anyone would buy a poorly cast, non-adjustable mount when a billet, adjustable, lockable mount can be had with proven CS and ethical business practices.
Mark Larue is a personal friend of mine. It is not for that reason I champion Larue products to this degree, but rather that one of his products may well have saved my life. I was injured in an explosion in Mosul in early 2008, and my SPR was launched about 80 feet by the blast directly under me. Two of my teamates were down to include my medic, who was KIA. I was able to get to my weapon and engage the initiators of the attack with my rifle, which had not lost zero even though the forend was severly damaged and the buttstock was shattered. The combo that took the hit was a S&B Short Dot in a Larue 1.93. The force broke my back, two ribs, almost crushed my right leg, dislocated my jaw, and gave me one hell of a concussion. I'm still recovering to this day, that's why I teach now instead of busting heads where I should be. The optic is still putting bad guys in it's crosshairs with my old teammates.
When the Larue products survived that with boring reliability, who would I supports ARMS when they break during installation?
I could go into the stuff Mark has sent to guys like me at great expense to Larue Tactical in emergencies for nothing more than a hurried "thanks" on our way out the door. Or feeding all comers at the Marine 3-Gun for free with a bunch of BBQ he helped cooked himself. Or helping sponsor the SOF 3-Gun match which benefits the Special Operations Warrior Foundation. Or taking the time away from commercial production to make a wazoo one-off for a military sniper that they may or may not wind up liking or buying. Or donating to Breat Cancer awareness...
just saying, support the folks that support you. Especially when their stuff is a whole lot better.