Originally Posted by AznZOhAn
I don't want stainless because chromoly lasts longer.
longer then what... please define your requirements here.
How much are you shooting at one time?
How many shots will be fired before cleaning occurs?
How will the barrel be maintained?
What accuracy level are we talking about?
Exactly what about 4150CMV is right for you...or why is it a must? You need to remember 4150CMV has a potencial fatal flaw in it... Done wrong its an accident waiting to shread your arm into pieces. This is even after it's been MPI tested. If you are not willing to pay top dollar for a 4150CMV barrel from FN or Colt, I wouldnt do it. Period. I dont care who else is making and selling them unless they also provide a print out of the mil-b-11595e testing report. END OF STORY... Without that report, in my hand, with the barrel..do not pass go, do not collect $200.
I would go with 4140CM Melonite treatment over 4150CMV anyday...even a Colt or FN one. Look at CMMG
( <- now hot) or S&W
Looks like S&W doesnt sell the barrels alone. The only ones they Melonite QPQ treat are the higher end ones as seen in their catalog HERE
starting on page 21 with the M&P15T #811041. So look to buying their full line upper for the upgraded barrel.