12" Monster 6.5 Grendel SBR

[Alpine2k3]

My attempt to make a decent gun that's handy in any situation. I built the upper today as soon as I got the barrel in. I borrowed my 11.5" SBR's lower for the picture since the other one is in NFA jail.

The parts list for the upper:

Sionics Upper Receiver
Sig Sauer ambi charging handle
6.5 type II bolt and bolt carrier
KAC RAS II free float rail
Monster 12" barrel
R Guns set screw FSB
.308 A2 type flash hider

I plan on getting a prismatic optic whenever I make up my mind on which one to get.
[ATTACH=CONFIG]16577[/ATTACH]

[BluntForceTrauma]

Cool. But how did you get an A2 front sight on it? My gas block journals are 1.3" and an A2 requires, I believe, 1.9".

[Alpine2k3]

3 of the 5 set screws on the gas block are holding it in place. Still seems pretty sturdy enough to not move around.

[Nonmongunamous]

My ACOG corresponds pretty well for my Grendel 12.5 pistol. Zero 200 with Hornady Blk. Try your info in Strelok with a TA11F.