Hey Guys, first post on the board since I finally decided I'm going to build an 18" SPR. I tossed around the idea of a MK12 then decided I'd rather go the custom route with some newer components, particularly the Hand Guard.
The main goal for the rifle is not necessarily the best group, although accuracy is important its more to be able to get out to 500-600 yards with a battle rifle that will last and be durable. That said, I ended up going with the:
Ballistic Advantage 556 Performance Series 18" SPR Barrel (Ops 12 ) - (CMV, QPQ, NiBx chamber)
I have a couple items I'd like some advice on....
With the 18" barrel and the Rifle length gas system does anyone know how much space I should leave exposed after adding a rail, allowing enough room for the Ops Inc collar?
I'm still not all the way sure if I am going to add the Ops Inc collar or just go with a 15" or 18" Midwest Industries SP hand-guard which allows for the suppressor to be installed under the rail.
I'm also a little confused about the stock. Should I wait until I can get the Viltor A5 or will it not harm anything to run this barrel with a Spikes Milspec Carbine buffer Kit? I picked up a Magpul ACS that should work with either since its Milspec but not sure about the carbine buffer.
Thanks much!