AR-15 UPPER RECEIVERS

AR-15 UPPER RECEIVERS

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Rock River Arms AR-15 Elite CAR A4 .223 16" Complete Upper Receiver

SALE

Rock River Arms AR-15 Elite CAR A4 .223 16" Complete Upper Receiver

Rock River Arms Elite A4 complete upper features a 16" chrome lined 1:9 twist barrel, A2 Flash Suppressor, side swivel mount, complete bolt assembly and charging handle and a .223/5.56 NATO Chamber. No FFL required.

AR0831B

In stock

$399.95

DPMS AR-15 M4 AP4 .223 16" Complete Flat Top Upper Receiver

SALE

DPMS AR-15 M4 AP4 .223 16" Complete Flat Top Upper Receiver

DPMS Pre Ban Flat Top M4 complete uppers featuring a 16" 1:9 twist chrome moly barrel with M203 mount cut out, complete bolt assembly and charging handle. No FFL required.

BA-AP416

In stock

$279.95

Rock River Arms AR-15 Mid-Length A4 .223 16" Complete Upper Receiver

SALE

Rock River Arms AR-15 Mid-Length A4 .223 16" Complete Upper Receiver

Rock River Arms Mid-Length A4 complete upper features a 16" chrome lined 1:9 twist barrel, A2 Flash Suppressor, complete bolt assembly and charging handle and a .223/5.56 NATO Chamber. No FFL required.

AR0380

Out of stock

$399.95

Out of stock
Aero Precision AR15 Stripped Upper/Lower Receiver Set - BLK

Aero Precision AR15 Stripped Upper/Lower Receiver Set - BLK



Upper Receiver Features:

  • Machined from 7075-T6 forged aluminum
  • M4 Feedramps
  • .250” takedown pin holes
  • Works with standard AR15 components

Lower Receiver Features:

  • Machined from 7075-T6 forged aluminum
  • Upper Tension Screw
  • Flared Magwell
  • Rear takedown pin detent hole is threaded for a 4-40 set screw
  • Works with standard AR15 components and magazines

APCS100002S

In stock

$137.99

Aero Precision AR15 Gen 2 Complete Upper - 16" Mid-Length - M-LOK - 5.56mm

Aero Precision AR15 Gen 2 Complete Upper - 16" Mid-Length - M-LOK - 5.56mm

Aero Precision AR15 Complete Upper featuring the Gen 2 ATLAS S-ONE Enhanced Handguard. Key features include front and rear picatinny rails, eliminated top center of rail for weight reduction, compatible with low profile gas blocks.

Gen 2 Upper Features:

  • 5.56 NATO 16" Midlength, 1/7 twist, 4150 CrMoV, QPQ, gas port drilled
  • .750 gas block journal
  • Mid-length gas system, .0785 gas port
  • M4 Feed Ramp Extension
  • HP and MPI tested
  • Standard A2 flash hider
  • 15" ATLAS S-ONE M-LOK handguard
  • Does not include BCG or Charging Handle

APAR700305M7

In stock

$409.99

Aero Precision AR15 M4E1-E Complete Upper - 7.5" Barrel - M-LOK - 5.56mm

Aero Precision AR15 M4E1-E Complete Upper - 7.5" Barrel - M-LOK - 5.56mm

Aero Precision AR15 Complete Upper featuring the QUANTUM Handguard. Anodized Black.

Features:

  • M4E1-E Threaded Assembled Upper Receiver
  • Quantum 7" Handguard
  • 7.5" 5.56 Pistol Length CMV Barrel
  • Low Profile Gas Block and Pistol Length Gas Tube
  • Product comes assembled
  • New enhanced forging that gives the upper receiver a "billet look"
  • M4 Feedramps
  • .250 takedown pin holes
  • Laser engraved T-marks
  • Includes port door and forward assist installed
  • Does not include BCG or Charging Handle

APAR640101M0

In stock

$399.99

Aero Precision AR15 Stripped Upper/Lower Receiver Set - FDE

Aero Precision AR15 Stripped Upper/Lower Receiver Set - FDE

Upper Receiver Features:

  • Machined from 7075-T6 forged aluminum
  • Coating:FDE Cerakote finish
  • M4 Feedramps
  • .250” takedown pin holes
  • Accepts standard AR15/M16 components

Lower Receiver Features:

  • Machined from 7075-T6 forged aluminum
  • Coating:Magpul™ FDE Cerakote finish
  • Works with standard AR15 components and magazines
  • Rear takedown pin detent hole is threaded for a 4-40 set screw

APCS100008S

In stock

$189.99

Aero Precision M5E1 Complete Upper - 18" - Keymod - .308 Win

Aero Precision M5E1 Complete Upper - 18" - Keymod - .308 Win

Aero Precision M5E1 Complete Upper featuring the Gen 2 Enhanced Handguard.

M5E1 Upper Features:

  • Forged from 7075 T6 aluminum
  • Precision machined to specific specs
  • M4 feedramps
  • Laser engraved T-marks (Anodized only)
  • .2795” takedown pin holes
  • Accepts standard DPMS .308 components
  • Comes with forward assist and port door installed
  • Handguard mounting platform is forged into the receiver
  • 15" Keymod free floating handguard
  • .308 CMV 18" barrel, 1/10 twist, 4150 CrMoV, QPQ,
  • .750 gas block journal
  • Rifle-length gas system, .089 gas port
  • DPMS Barrel Extension
  • HP and MPI Tested
  • Does not include BCG or Charging Handle

APAR308554P25

Out of stock

$549.99

Out of stock
CMMG AR-15 M4 .223 14.7" Complete Flat Top Upper Receiver

CMMG AR-15 M4 .223 14.7" Complete Flat Top Upper Receiver

CMMG M4 Carbine Upper Receiver with a 14.7", 1:7 twist, chrome lined barrel. Features M4 cuts, pinned and welded Bird Cage flash suppressor and comes complete with bolt carrier assembly and charging handle. Overall barrel length is the legally required 16". No FFL required.

CMMG002UPPER

Out of stock

$639.95

Out of stock
CMMG M4LE .22LR 16" Pencil Barrel Upper Receiver

CMMG M4LE .22LR 16" Pencil Barrel Upper Receiver

CMMG M4LE .22 Upper Receiver with a 16," 1:16 twist carbon steel lightweight barrel, Mil-Spec 1/2x28 threaded muzzle, anti-jam charging handle, black phosphate action, and A2 flash hider. Comes complete with bolt carrier assembly and charging handle. No FFL required.

CMMG22B1C50

Out of stock

$429.95

Out of stock

AR-15 Upper Receivers

Find the Upper Receiver Parts You Need for your AR-15 Gun

Customize or begin building sooner with our AR-15 Upper Receivers. We have receivers boasting hard chrome-lined chambers and bores that deliver exceptional endurance and easier maintenance. Choose from a fast 1:7 twist or the popular 1:9 rate in our selection of AR-15 upper receivers. Top names in receiver manufacturing are here, including Rock River Arms, CMMG, and ArmaLite. These makers emphasize testing prior to shipment for your satisfaction. CMMG conducts magnetic particle testing on its barrels, a process which reveals tiny flaws. Order a Carbine Upper Receiver with M4 feed ramps and Bird Cage flash suppressor from this manufacturer.

Get the Rifle You Really Want with AR-15 Upper Receiver Parts

Make a match rifle or a versatile hunting firearm with AR-15 upper receiver parts. The AR15’s modular structure allows you to modify its design to meet your aspirations. Find a flat top so you can reconfigure as needed. We carry an M4 version of the AR15 carbine – its flat top provides a range of sighting options. Many of our AR-15 upper receiver parts are made from higher grade, mil-spec steel and work with existing mil-spec lowers. We’re also your superlative source for AR 15 parts sold individually, from charging handle assemblies to sling mounts.

AR-15 Upper Receiver Assembly Ensures Components Coincide

When you want the complete package, we’re here with assemblies! You can opt for an AR-15 Upper Receiver Assembly featuring a 16-inch barrel and a 1:9 twist, paired with a flash suppressor, mount, bolt assembly and charging handle. A dedicated bolt to match the upper assembly is important to the workings of your AR-15. You’ll also benefit from a handle matched to your barrel. Choose AR-15 upper receiver assemblies backed by precision manufacturing to add to your rifle or when building a firearm from square one.