The OEM barrel has been dual. It has seen less than 250 rounds, never +P, always factory new.You can expect Performance Center. Precisio n from this barrel. Apex Semi Fit match barre. L and is extremely precise. One can see remnants of blue layout fluid that the gunsmith used to fit the barrel to slide and frame. In case i want to. Fit it to a diff slide. It will either drop right in your pistol or require very minor adjust to the hood or locking lug to lock up tight. EXACTLY what you want in a match precision fit barrel.
The OEM will drop right in ANY 5 M&P. Apex has great video showing exactly how to fit the hood and locking. Lug should it be necessary. If you have a small metal file and. Some Dykem layout fluid, it will take either a few mins or no time at all and you will have a barrel capable of 5 groups at 25 ft, standing bench will give even better results.
Barrel saw less than 50 rounds o. I wound not have any issue using this barrel in the OEM ported slide. FURTHER NOTE: Apex barrel is Not ported. The item "Smith & Wesson M&P Pro 9mm 5 Barrels (2), Apex semi-fit, OEM Ported, Nitrided" is in sale since Thursday, October 26, 2017.This item is in the category "Sporting Goods\Hunting\Gun Parts\Pistol". The seller is "cpeugnet" and is located in Peoria, Arizona. This item can be shipped to United States.