UppersValue Tier

Aero Precision

Aero Precision M4E1 Threaded Complete Upper

M4E1 complete upper with threaded receiver for easy barrel nut installation. Value-oriented drop-in option.

No image available

Affiliate links (?)

Check Best Price

View at Optics Planet

Add to Build

Quick Specs

Price: $799
Weight: 6 lb
Brand: Aero Precision
Category: upper

Features

•5.56 NATO / .223 Rem
•Threaded receiver design
•Compatible with most barrel nuts
•M-LOK handguard

Capability Boosts

Reliability+1

Modularity+2

Recommended For

Duty/Patrol+3

Competition+2

Home Defense

Outdoor Defense

Compatibility Tags

family: ar-patterninterface: picatinny-tophandguard: mlokbarrel: long

Compatible Platforms

+55 more

Custom

Custom AR-15 (Build From Scratch)

Palmetto State Armory

PSA PA-15 16" Carbine

Smith & Wesson

Smith & Wesson M&P15 Sport II

Diamondback Firearms

Diamondback DB15 16"

Aero Precision

Aero Precision M4E1 Complete Rifle 16"

Bravo Company Manufacturing

BCM RECCE-16 MCMR

Pairs Well With

Top matches

Sig Sauer

Sig Sauer M400 Tread

4 shared compatibility tags

Excellent

Smith & Wesson

Smith & Wesson M&P15 Sport II

3 shared compatibility tags

Excellent

Aero Precision

Aero Precision M4E1 Complete Rifle 16"

4 shared compatibility tags

Excellent

Bravo Company Manufacturing

BCM RECCE-16 MCMR

4 shared compatibility tags

Excellent

KE Arms

KE Arms WWSD 16"

4 shared compatibility tags

Excellent

Sons of Liberty Gun Works

Sons of Liberty Gun Works Patrol

4 shared compatibility tags

Excellent

Similar Products

Aero Precision

Aero Precision 300 Blackout Upper

$599

Aero Precision

Aero Precision Complete Upper

$449

Aero Precision

Aero Precision M4E1 14.7" Complete Upper

$499

Palmetto State Armory

PSA Premium/CHF Complete Upper

$349

Related Guides & Articles

Guides

Best AR-15 Rifles 2026: Complete Buyer's Guide (Budget to Premium Ranked)

gear•16 min read

How to Build an AR-15: Complete Parts List & Step-by-Step Guide (2026)

setup•8 min read

Best AR-15 Brands 2026: PSA, Aero, BCM, DD, Geissele & KAC Ranked

intel•12 min read

Articles

Seekins Precision SIC: Special Operations Modular Precision Rifle

news•Jan 23, 2026

LMT Hybrid MRP Uppers: M-LOK Meets Monolithic at SHOT Show 2026

news•Jan 22, 2026

Browse all guides →Browse all articles →

Build Your Custom Configuration

Add the Aero Precision M4E1 Threaded Complete Upper to your build and see how it enhances your platform.

Start Building