Turn your S&W M&P Shield into a high end customized carry pistol with a simple drop-in barrel upgrade. You will love the improved 1/16 left hand twist rate, broach cut rifling, increased chamber support and 1/8" extended material to the overall length. If you order a threaded version, the barrel will have the 1/8" extra length plus the 1/2" for threading. You will see accuracy improvements plus your gun will stand out from others. Also view our coatings as we have some of the most unique in the industry.