Benchmark #4 contour SS barrel that will finish at 27" with 1-9 twist in 5R. Straight Shooting Gunsmithing V port Vaporizer brake. Brake is 7/8 diameter tapering to .666 with four 3/16 V ports at 10 degreees. Threads are 1/2x28 and drilled for 7mm barrel profile is pretty same as Krieger #4 Breech is 1.250 for 2.750 tapering to .665 at muzzle. weight should be around 3.5 lbs Selling as a package ONLY. $400 shipped contact by email ONLY hermanharkeaol.com as I do not check PMs daily I will be listing an action and manners stock so you can have a your build asap. Had been planning a 7 LRM but another neck/shoulder surgery coming up and will probably stick with my 7-08 and 6.5-47 for the next year or two.