13" jl billet handguard - JL Billet Angled AR-15 M-Lok Free-Float Handguard

Overall a solid handguard that is lightweight and has a different look to it than most rails on the market. The fitment to the barrel nut was tight but not a thermal fit. You will need to purchase a 1-1/8" crows foot wrench, if you do not already have one, to tighten the barrel nut. I used this rail for a 13.7" build with a Ballistic Advantage Barrel and a SA adjustable gas block. Everything fit together perfectly, only issue I saw was if you run a SA Adjustable gas block the M-Lok section directly underneath is so close that the treads of your M-Lok attachment will touch the gas block.