If you can find a 30lb recoil spring... I'd say go for it. The chamber is well supported, and if you really need that much power, or can afford to plink with .45Super, the warranty is the last thing you'd be worrying about.
A forum community dedicated to Smith & Wesson M&P Pistol owners and enthusiasts. Come join the discussion about optics, performance, gunsmithing, troubleshooting, reviews, accessories, classifieds, and more!