M5E1 18" .308 CMV Complete Upper Receiver

Aero Precision M5E1 18" .308 CMV Complete Uppers

M5E1 18" .308 CMV Complete Upper Receiver Product Sku: APPG308554P25


  • M5E1 Assembled Upper Receiver
  • Gen 2 Enhanced Handguard of choice
  • 18" .308 CMV Barrel
  • Low Profile Gas Block and Rifle Length Gas Tube
  • Product comes assembled
  • This complete upper does not include a BCG or Charging Handle. These products may be selected as add-ons under the Finish Your Build tab

M5E1 Upper Features:

  • Forged from 7075 T6 aluminum
  • Precision machined to our 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

NEW Gen 2 Enhanced Handguard Features:

  • Added quick disconnect sling socket at the 3, 6 and 9 o’clock positions
  • Milled additional surfaces along flats to aid with gripping and add visual appeal
  • New profile of the Picatinny Top Rail
  • 1pc free float design
  • Rail is Machined from 6061-T6 Aluminum
  • Built in Anti-Rotation tabs
  • Scalloped rails
  • Continuous top rail
  • 1.8" inside diameter fits most muzzle devices and 1.5" suppressors
  • Compatible with low profile gas blocks

18" .308 CMV Barrel Features:

  • Twist: 1 in 10
  • Threading: 5/8 x 24
  • Material: 4150 Chrome Moly Vanadium Steel
  • Finish: QPQ corrosion resistant finish both inside and out
  • Gas Block Journal: .750
  • Gast Port: .089
  • Gas System Length: Rifle
  • Weight: 56.64oz
  • DPMS Barrel Extension
  • HP and MPI Tested
Made In America? Yes
Series M5E1
Chamber .308 Winchester
Barrel Length 18"
Weight(s) -

Customer Reviews

4 Item(s)

Great complete upper Review by James
Matched this 15 inch M-Lok FDE upper with the M5 lower receiver, and I couldn't be happier! Very solid design. Great fit and finish. Super fast and free delivery! Aero Precision has my future business. (Posted on 12/31/2015)
Excellent upper. Don't cheap out. Review by Christopher
Top quality. Had issues with compatability of parts from other manufatures. Do yourself a favor and buy all Aero parts to complete your upper, mainly the BCG. You'll be sorry if you don't! You're only saving money until you have to re-purchase the same part to replace the junk you bought the first time. (Posted on 12/6/2015)
AP Upper Receiver Review by Steven W
This is my first rifle build and I have put a LOT of research into the build. For the money and quality AP can't be beat. I have read of issues with lower receivers and uppers not meshing well with some companies. too loss or too tight and needing adjustment. AP's uppers and lowers mesh perfect with no adjustments needed. Or so is the case with mine. Thank you AP for all that you do! (Posted on 8/22/2015)
good product Review by justin h
Haven't had a chance to shot with this yet. Due to im still building the rifle slowly. But it definitely makes the rifle look good. Would have given this a 5 star on quality, but since it didnt mesh with my lower, and had to take it to a gun smith. I gave it a 4. Quick shipping, received it in only 3 days as promised with the extra shipping of course. Likely to review again once i get their bcg and charging handle in. (Posted on 7/11/2015)

4 Item(s)

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