https://store.apextactical.com/WebDi...?categoryId=54
"Accuracy in your Smith & Wesson M&P not what you expected? Not what you think acceptable? That brand name aftermarket 'match grade' barrel not living up to your expectations? Well, Apex has the solution.
Coming soon, the new 9mm Apex Grade Gunsmith Fit or Semi Drop-In replacement barrel for the M&P. The new barrels will be available in either 4.25" or 5.00" versions. The Semi Drop-In version is easily fitted by the end user. For those demanding the most in accuracy from their M&P, the Gunsmith Fit version is the answer and requires installation by a competent gunsmith."
Thoughts?