Does anyone have any opinion on the 2 following AR 15 rifles by Smith & Wesson please?

The 15TS is well-balanced looks great has a good twist rate of 1 and 7 I believe but since it has a 14.5 inch barrel the flash suppressor is welded and pinned making it difficult to change to a compensator.

The 15X with M-Lok has a one in a twist with the A2 post and the standard A2 flash hider.

Priority have a SIG 400 enhanced but wanted something a little lighter and different.

Any opinions welcome

http://www.smith-wesson.com/firearms/mp-15-ts

http://www.smith-wesson.com/firearms/mp-15x-m-lok-0