I actually built this rifle about a year ago. My first AR10. It was very educational and I've been tweaking and making adjustments on it all the while. I think I'm finally done tinkering with it now that I have the Vortex Viper PST 4-16x50 mounted on it. I've been plinking with it but now it's time to get the glass zeroed and see what she can really do. Here is what I have.

MEGA MATEN 18” AR10 Marksman Rifle

Mega MKM Maten Extended Rifle Length Keymod Set
Mega .308 Billet Upper Receiver
Mega .308 Billet Ambi Lower Receiver
Mega Lightweight Extruded Keymod Handguard

Lower
Rainier Arms Buffer Tube Tube/Buffer and spring Assembly
Magpul ACS Mil-Spec Stock W/Limbsaver Butt Pad
Mega Branded Hogue Rubber Finger Grooved Pistol Grip
JP Lower Parts Kit Mil-Spec Minus Trigger Assembly
Geissele Hi-Speed National Match DMR (Designated Marksman Rifle) Trigger
Battle Arms Development Combat Ambi Safety Selector Switch
Battle Arms Development Enhanced Magazine Release
Norgon Ambi Bolt Catch/Release

Upper
Mega Arms .308 Charging Handle
Mega Arms .308 18” Mid Length .750 Gas Block Journal Barrel 1:10
Rainier Arms Ultra Match .308 Bolt Carrier Group
Syrac Ordnance .750 Set Screw Low Pro Adjustable Gas Block
SLR Synergy Comp 30 Cal 5/8x24 Thread
Lewis Machine Tool .308 Flip Up BUIS Set Front/Rear
Gear Sector Rail Mount QD Socket/Swivel Set
B&T Atlas Bipod Lever With ADM 170 Lever

Optics
Bobro Precision Optic Mount Extended 30mm Rings
Vortex Viper PST 4-16x50 30mm Tube FFP Illuminated EBR-1 MRAD Reticle
Aadmount Objective/Occular Lens Cap Covers and Throw Lever