GC_UPC PWS MK116 PRO Upper 16.1" Barrel .223 Wylde 3-Setting Adjustable Gas System A2 Flash Hider MAP 19PM116UA0B show more like this 14.95 TheGunDock.com GC_UPC Primary Weapons Mk116 Pro Upper Receiver Complete .223 Wylde - Mk116 Pro Complete Upper Receiver Assembly 16.1" Black $649.99 19-PM116UA0B show more like this additional Brownells GC_UPC Primary Weapons Systems MK116 Pro Upper .223 Wylde 16.1" Barrel $654.99 19-PM116UA0B show more like this 14.58 GrabAGun.com GC_UPC Primary Weapons 19-PM116UA0B MK116 Pro 223 Wylde 16.10 in Black Anodized Receiver Black Barrel with 15 in M-LOK Handguard for AR-15 (Piston Driven) $656.00 19-PM116UA0B show more like this lat rate starting at $11.99 Hinterland Outfitters GC_UPC PWS MK111 PRO UPPER 223WYLDE 16.1" MAP 19PM116UA0B show more like this Free shipping over $400 (Excludes Ammo) Gman Sport GC_UPC PWS MK111 PRO UPPER 223WYLDE 16.1" MAP PWS19_PM116UA0B show more like this Free on Guns, $9.99 Accessories, $14.99 Ammo Tombstone Tactical GC_UPC Mk116 Pro Upper Receiver Complete .223 Wylde 19-PM116UA0B MAP 19-PM116UA0B show more like this Firearms $18.45, Free over $500 Shooting Surplus GC_UPC PWS MK111 PRO UPPER 223WYLDE 16.1" $799.95 19PM116UA0B show more like this Free shipping on orders over $300 Skogen’s Gun Supply GC_UPC PWS AR-15 MK116 MOD 1-M Long Stroke Gas Piston Upper Receiver Assembly 223 Wylde 16.1 Barrel M-Lok FSC556 - 700512" $1,029.49 M116UA01-1F show more like this 14.25 MidwayUSA