Pros and cons for M&P ar 15

[Fisherdave10]

Another factor is your extractor spring, insert type and if you have an O-ring around that insert.

As a professional operator  I install O-rings around my AR extractor inserts for increased extractor tension.  It's what operators do.

[WoodlandShooter]

ok, looks like I have a reason to go to a WAC show now...

well, started playing with some hand loads to try and get to some 262 performance.


have one load at 2620 FPS, and another hitting 2650 FPS...there is a node in there somewhere, so will do a ladder test to see where it is

[T-Dozzer]

If it doesn't have a  forward assist and a dust cover, don't buy it. You'll spend more money on an AR to add those than to buy it with it already on it.

Couple years ago I would have disagreed. Took out the AR for some cold and snowy yote  hunting this year. Had to use the forward assist when bolt wouldn't close due to temp and too much lube. Might have been worse without the dust cover.