We looked around at other receiver offerings on the market and weren't satisfied with what we saw.  We created a custom mix of high quality upper parts to create a precision receiver that is purpose built for mid range target engagement AND is designed to be ran with a silencer.
 
All uppers are assembled and tested to achieve sub MOA accuracy.  This REV1 tested the best with PMC 77GR X-TAC Match achieving 0.87 MOA at 100M***  The 18" 3-Gun Profile barrel with a 1:8 twist much prefers heavy for caliber rounds.  55GR M193 underperforms achieving 3.27 MOA***
 
Parts List
Cross Machine & Tool UPUR-4 Billet Upper
Slick Side
7076-T6 Aluminum
M4 Feed Ramps
Odin Works 18" .223 Wylde Barrel
Rifle Length Gas System
3-Gun Profile
416R Stainless 
1:8 Twist Rate
Adjustable Odin Works Gas Block
1/2 X 28 Thread
Spike's Tactical M16 Bolt Carrier Group
Nickel Boron Coated
Full Auto / M16 Cut
8620 Steel Bolt Carrier
9310 Steel Bolt
Geissele Automatics MK8 15" Handguard
Full-length M1913 picatinny top rail
M-LOK slots on five sides
15" handguard weighs just 14.7 oz
Radian Raptor Charging Handle
Ambidextrous
7075 Aluminum
Yankee Hill Machine Phantom Muzzle Brake / QD Device
Designed to fit YHM Suppressors
Functions as a stand alone muzzle brake
 
 
 
***Was tested with a YHM Turbo K Suppressor in the Minnesota Winter at -4 F with a 11mph wind.  Your results WILL vary based on atmospheric conditions, ammunition, skill of shooter, and muzzle devices ***