So I built this over the past year + and after finally coming home, I have completed it. This post was originally started on the 68forums but I also wanted to share here as I had been talking to TECHUSMC on here when I started building it.
I went with the following and in choosing the OPS 416 kit some slight modifications/tweeks were done.
Prices were from the time of purchase and may have changed since.
6.8 SPC II AR Build
Barrel: AR Performance 16" 6.8 SPCII Scout profile barrel- 4150 CMV $175.00
Muzzle Break: AAC Brakeout 2.0 FSC 7.62 51T 5/8X24 $88.00
Barrel Nut: Aero Precision AR15 BAR Barrel Nut #APRH100268 $36.00
Hand Guard: Aero Precision 12" Enhanced M-Lok Hand guard #APRA100017C $157.50
Pistol Grip: ERGO GRIP SUREGRIP #: 4000-BLK $26.40
Upper: Aero Precision AR15 Stripped Upper Receiver #APAR501603B $44.00
Lower: Aero Precision AR15 Stripped Lower Receiver, STS #APAR501103B $75.00
Parts kit – Upper: RRA AR15 Upper Parts Kit #RRA-AR0048K $22.90
Parts kit – Lower: Aero Precision AR15 Lower Parts Kit #APRH100029 $54.00
Trigger Guard: Aero Precision Trigger Guard #APRH100084 $18.00
Bolt: AR Performance 6.8 SPC AR15 M16 bolt #471263987 $85.00
Firing Pin: VooDoo Innovations Firing Pin Stainless Steel LifeCoat $18.00
Gas Block: Geissele Automatics 05-231C Super Gas Block Carbon Stl $50.24
Charging Handle: BCM Charging Handle Mod 3 Lrg Latch $42.18
Gas Piston kit: Osprey Defense OPS-416 Rifle Length Kit $185.00
Gas Tube Op Rod: Osprey Defense Free Float Op Rod ARK-INV5266 $43.50
Butt Stock kit: ACE Ltd. ARFX Skeleton Stock Assy Kit+ Buffer Spring/Tube $110.00
TOTAL: 1230.72 ( I also had to add approx $150 for the smith work and Cerakote job).
All in all I think I am into the rifle (minus Optic) for around
$1500.
Here is the complete Cerakoted Rifle.
Here is the Gas Block, I went with a Geissele Low Profile Gas Block and had it pinned due to some reports of the piston actually pushing the block forward over time.
With the help of Mr Penty Wheeler, we did have to open up the gas ports to match up the Geissele Lo Pro gas block and everything cycled perfectly at .080"
I will say that you are limited on which Hand guards you can use when deciding on the Ops-416 Gas Piston kit but if you look, more and more are available. I went with an
Aero Precision AR15 Enhanced Hand guard which gave me a 1.8" inside diameter. This would also give me the option, if I chose to SBR it, to have the can inside the HG.
The optic I went with is a Vortex Viper PST 2.5-10x32 FFP mounted on an Aero Precision Ultralight 30mm Scope Mount.
I will be hitting the range shortly and I can update on how poorly I shoot :)
Cheers folks,
TX