AR Upper Receivers

The upper receiver decides what your AR is chambered in, how long it is and how it handles, which makes it the fastest way to turn one lower into several different rifles.

Ceremony Arms stocks stripped upper receivers for builders who want to choose their own barrel, handguard and bolt carrier group, and complete uppers that arrive assembled and headspaced, usually with barrel, gas system, handguard and charging handle. Common configurations include 16-inch 5.56 NATO carbines, mid-length and rifle-length gas systems, short-barrel 5.56 and .300 Blackout uppers, and AR-10 pattern uppers in .308 Winchester and 6.5 Creedmoor.

Match receiver pattern to your lower before ordering — AR-10 pattern parts are not standardized the way AR-15 parts are, and a DPMS-pattern upper will not mate to an Armalite-pattern lower. Confirm whether a bolt carrier group and charging handle are included.

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AR Upper Receivers

Angstadt Arms 0940 UDP Upper, 9MM, 6 Barrel, Black, Includes 9MM BCG and Charging Handle AAUT009006

Battle Arms Development WORKHORSE, Complete Upper Receiver, 556NATO, 10.5 Barrel, Fits AR-15, M-Lok Handguard, Anodized Finish, Black, Includes Bad Rack-15 Ambidextrous Charging Handle and AR15/M16 BCG WH-UR10.5B-Y-15

Battle Arms Development WORKHORSE, Complete Upper Receiver, 556NATO, 10.5 Barrel, Fits AR-15, M-Lok Handguard, Anodized Finish, Black, Includes Bad Rack-15 C Ambidextrous Charging Handle and AR15/M16 BCG WH-UR10.5B-Y-15C

Battle Arms Development WORKHORSE, Complete Upper Receiver, 556NATO, 16 Barrel, Fits AR-15, M-Lok Handguard, Anodized Finish, Black, Includes Bad Rack-15 Ambidextrous Charging Handle and AR15/M16 BCG WH-UR16B-Y-15

Battle Arms Development WORKHORSE, Complete Upper Receiver, 556NATO, 16 Barrel, Fits AR-15, M-Lok Handguard, Anodized Finish, Black, Includes Bad Rack-15 C Ambidextrous Charging Handle and AR15/M16 BCG WH-UR16B-Y-15C

Battle Arms Development WORKHORSE, Upper Receiver Assembly, 223 Remington/556NATO, 10.5 Barrel, Carbine-length Gas System, Anodized Finish, Black, A2 Flash Hider, WORKHORSE 9.5 M-LOK Free Float Handguard, Does Not Include Bolt Carrier Group or Chargi

Battle Arms Development WORKHORSE, Upper Receiver Assembly, 223 Remington/556NATO, 16 Barrel, Mid-length Gas System, Anodized Finish, Black, A2 Flash Hider, WORKHORSE 15 M-LOK Free Float Handguard, Does Not Include Bolt Carrier Group or Charging Hand

Battle Arms Development XIPHOS Upper Receiver, Stripped, 9MM, Anodized Finish, Black, Billet 7075-T6 Aluminum Construction BAD-PCC-UR

Black Rain Ordnance 458 SOCOM Complete Upper, 16 4150 Chromoly Vanadium Steel Barrel, 1:14 Twist, Forged, 15 MLOK Rail, Nitride Coated BCG, Billet Charging Handle w/Extended Tac Latch, 458 SOCOM Muzzle Brake, Black Finish BRO-SPEC15-CU-458S

Bootleg Billet Upper, Upper, Black, AR15 BP-UR-1A

CMMG Resolute MK4, Upper Receiver, 6MM ARC, 16.1 Barrel, Cerakote Finish, Armor Black 60B1091-AB

DEYRA DY9 9MM COMPLETE UPR ISLAND BK

Daniel Defense DDM4V7, Complete Upper, 223 Rem/556NATO, 16 Cold Hammer Forged Barrel, 1:7 Twist, Black, MLOK 23-128-02339-047

FightLite (MCR) Mission Configurable Rifle, Complete Upper Receiver, 556NATO, 12.5 Threaded Barrel, Dual Feed, Picatinny Rail, Fits AR-15 Lower Receiver, Anodized Finish, Black MCR-060S

FightLite (MCR) Mission Configurable Rifle, Milspec Complete Upper Receiver, 556NATO, 12.5 Threaded Barrel, Dual Feed, Picatinny Rail, Dry Film Lubrication, Fits AR-15 Lower Receiver, Anodized Finish, Black MCR-556-DFRS

FightLite (MCR) Mission Configurable Rifle, Milspec Complete Upper Receiver, 556NATO, 16.25 Threaded Barrel, Dual Feed, Picatinny Rail, Dry Film Lubrication, Fits AR-15 Lower Receiver, Anodized Finish, Black MCR-556-DFR

FightLite Mission Configurable Rifle Dual-Feed Upper Receiver Assembly, 556NATO, 12.5 Quick-Change Barrel, Threaded 1/2X28, Fits AR-15 Lower Receiver, M-LOK Handguard, Adjustable Sight Set, Manganese Phosphate Finish, Black, Includes Buffer, Spacer,

FightLite Mission Configurable Rifle Dual-Feed Upper Receiver Assembly, 556NATO, 12.5 Quick-Change Barrel, Threaded 1/2X28, Fits AR-15 Lower Receiver, M-LOK Handguard, Adjustable Sight Set, Manganese Phosphate Finish, Black, Includes Buffer, Spacer,

FightLite Mission Configurable Rifle, 556NATO, 16.25, Black MCR-060

FightLite Mission Configurable Rifle, 556NATO, 16.25, Black MCR-060M

Heckler & Koch MR762 A4 Upper Receiver, 308 Winchester/762NATO, 13 Barrel, Threaded 5/8X24, M-LOK Handguard, Anodized Finish, Black, Adjustable Gas Block, Includes Bolt Carrier Group, Buffer Weight, and Buffer Spring 51001919

KAK Industry AR-15 Upper Completion Kit, Phosphate Finish, Black KAR-KT-18

Luth-AR Stripped NC15 Forged Upper Receiver, Manufactured from 7075-T6 Aluminum, Hard-Coat Anodized, Features Upper Picatinny Rail for Mounting Optics and Accessories FTT-EA

Luth-AR Upper, Black, 1913 Rail for Mounting Optics and Accessories, Forged, Flat Top, Comes with Charging Handle, Forward Assist, and Dust Cover FTT-EA1

PWS MK114 MOD 2-M UPR 14.5 223WYLDE

Primary Weapons Systems MK109 MOD 1-M, Upper Receiver, Fits AR-15, 300 Blackout, 9.75 Barrel, 1:8 Twist, PWS Triad Muzzle Device, 8.9 PWS PicLok MLOK Handguard, Anodized Finish, Black, Includes Radian Raptor Ambidextrous Charging Handle MK1-M1U-300BL

Primary Weapons Systems MK116 MOD 2-M, Upper Receiver, 762x39, 16.1 Barrel, Triad30 Muzzle Device, Anodized Finish, Black, Radian Raptor Charging Handle, MLOK Handguard, Fits AR-15 MK1-M2U-762X39-16

Primary Weapons Systems MK116 MOD 2-M, Upper Receiver, Fits AR-15, 223 Wylde, 16.1 Barrel, 1:8 Twist, FSC 556 Muzzle Device, 15 PWS PicLok MLOK Handguard, Anodized Finish, Black, Includes Radian Raptor Ambidextrous Charging Handle MK1-M2U-223-16

Primary Weapons Systems MMK116 MOD 1-M, Upper Receiver, 762X39, 16.1 Barrel, Triad30 Muzzle Device, Anodized Finish, Black, Radian Raptor Charging Handle, MLOK Handguard, Fits AR-15 MK1-M1U-762X39-16

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