New Smith & Wesson M&P15 Rifles Shipping


Smith & Wesson announced that it was now shipping a pair of its M&P rifles that have been updated with M-LOK gear. The two rifles that were updated are the M&P15T and the M&P15X. (Earlier in the year, the company began shipping the M&P15 Sport II with M-LOK.)

Both the -T and the -X share many common features and specifications. Some of those commonalities are:

  • receivers: forged with hard coat anodizing; the lower has an integral trigger guard
  • barrels: 16″ threaded barrels made of 4140 steel; 5R rifling with 1:8″ twist; Armornite finish
  • muzzle device: the company’s own patented flash suppressor
  • rear sight: Magpul MBUS
  • magazine: 30 round Magpul PMAG
  • stock: M4 style adjustable
  • pistol grip: A2 style
  • forward assist: yes

The major differentiator between the two relates to the gas block and the parts affected by this. The -X version of the gun uses an A2 style front sight base. Matched with this is an aluminum, carbine length hand guard. The hand guard is a Smith & Wesson product with M-LOK attachment points. The company includes a 2″ length of Picatinny rail to use with the M-LOK if you have an older light or other accessory you need to hook onto the gun. This gun has a suggested retail price of $1,239.

The -T version of the rifle uses a low profile gas block. This allows the company to use its 13″ long hand guard. This hand guard is also designed to the M-LOK specification for accessory attachments. Since there is no front sight tower, the company includes a Magpul MBUS front sight with the gun. The MSRP is $1,190.

Richard Johnson

An advocate of gun proliferation zones, Richard is a long time shooter, former cop and internet entrepreneur. Among the many places he calls home is


  • Herr Wolf

    why not go a full 15″? then guys can get their full “Costa C-Clamp” on.

  • Thatguy

    Anyone know if they are still making the “traditional AR” with the standard barrels or are all their new ARs just like the sport model?

    • Twilight sparkle

      What do you consider a “standard” barrel? Or traditional ar?
      Are you talking light weight 20 inch colt sp1 style
      Do you mean chrome lined 1/7 mpi hpt m4 profile
      Do you mean un lined in treated lightweight
      Or possibly an H bar?

      There’s a lot of different barrels that have been out a long time now…

  • AndyHasky

    I guess the big manufacturers are starting to realize keymod is losing? I bet Ruger will update their line to either drop keymod for m-lock entirely or at least give an m-lok option.

  • TheNotoriousIUD

    Gotta wonder why every component of the AR platform has evolved to some degree but the butt ugly stock is the same since the 80’s. Daniel Defense has a nice looking one.

    • BravoSeven

      I purchased the Daniel Defense M4A1 several years ago and it quickly became my favorite rifle. I definitely prefer the DD butt stock vs standard AR equipment. It’s one tight butt…… Stock.

  • Piotr Jan W.

    Maybe they’ll make one without the retarded forward assist again? Savage does, I’m sure it does them well, more companies should follow. Think about all the material saved by eliminating that junk. Think about the environment. Think about the children… ;-(