I have the SlideFire stock and it works perfectly on my DPMS AR10, S&W 15T, and S&W 15-22. The AR10 has much more recoil, so a lighter weight trigger is not needed. I have lighter pull weight triggers on the AR15 and 15-22, and the SlideFire also works great on both of those. The AR15 may not need the lighter trigger, but I prefer light pull weight triggers. The 15-22 does need a light pull trigger, due to the low recoil. When swapping the stock from gun to gun, the only issue is you have to remove the stock hand grip and use the SlideFire supplied block, to hold the safety and pin springs in place.
Bob