' Main Title theme Westword ' Ramin Djawadi <| sep |> that ' s besides the point though you ' re derailing the conversation . <| sep |> Only thing I like about him . <| sep |> Bought it on the PS Store via PC this afternoon for $ 40 , check again ? <| sep |> Thankfully you didn ' t end up with trench foot <| sep |> Shooter is spot on with the receiver recommendations . If you want the look of the NP 3 go for it . Otherwise , stick with a less expensive BCG like AIM or Midwest Industries . They offer a lifetime warranty and also offer different coatingstreatments to suit your needs . I like Nitrided BCGs personally and I will definitely be using them on all my future builds . Save the big bucks for the parts that matter like barrel and trigger . Spray some lube in it every thousand rounds and you ' ll be good . As far as the barrel midlength is best for 16 barrels . As for the twist 17 is best for shooting the heavier bullets but it does a decent job with the normal M 193 stuff . For shooting at distance you ' re going to want the heavier rounds anyways . You really could build for less than $ 1500 and get a very nicereliable rifle . Less expensive barrels that are very nice consider Ballistic Advantage , Micro Moa , Faxon , AR Performance . For pricier but more precision oriented barrels LaRue , Krieger , and Lothar Walther are among the most highly recommended . As I said at $ 1500 you can build one heck of a rifle and still have money left for ammo and an optic . And if you really want to spend the full $ 2500 you can get a nice suppressor . BTW once you have shot suppressed you never go back . If your looking at quality rails I recommend Midwest Industries Gen 3 , BCM KMR , Geissele , SLR Rifleworks , Fortis , DD , and if you don ' t want to spend $ 200 ish then ALG makes a solid budget option .