Stag 15 M4 Upper

Starting At $449.99
(5 reviews) Write a Review

The Stag 15 M4 Upper offers the high quality, durable, military proven M4 design you've been looking for. Made to mil-spec standards, this upper satisfies the need for a standard GI carbine. Featuring a 5.56x45mm NATO chamber 16" 1/7 chrome lined barrel with a thermoplastic handguard and A2 birdcage flash hider.

This upper half does not include a BCG or Charging Handle.

Action: Semi-Auto Direct Impingement

Caliber: 5.56 NATO | .223

Twist Rate: 1/7 Button Rifled

Muzzle Device: A2 Flash Hider

Barrel: 16", 4150 Steel, Chrome Lined, Government Profile, Manganese Phosphate Coated

Handguard: Thermoplastic with Double Heat Shields

Receiver Material: Forged and Mil-Spec 7075 T6 Aluminum with Type 3 Hard Coat Anodizing

Bolt Carrier: None

Gas System: Carbine Length with A2 Front Post

Charging Handle: None

SKU:  STAG15101100

This upper half does not include a BCG or Charging Handle.

*Product images are for illustrative purposes only and may differ from the actual product.


Q: What is the compatibility of this upper?

A: All of our complete uppers are compatible with mil-spec lower receivers.

5 Reviews

  • 5
    stag 15 m4 upper

    Posted by Unknown on 1st Feb 2021

    great product everything as described will buy from you again

  • 5
    Great Match To My STAG ARMS Lower

    Posted by Jose Flores on 6th Oct 2020

    I inherited a good AR-15 the had a "built" upper. I ordered the STAG ARMS M4 upper to replace the built one. Now I have a complete AR-15 M4. Both upper and lower are a great match. Fires well. I am very pleased with my traditional AR-15 M4.

  • 5
    Stag 15 M4 Upper Left Hand

    Posted by Jim on 26th May 2020

    As always fantastic quality and shoots like a dream.

  • 5
    Solid and reliable

    Posted by Tom on 12th May 2020

    I've had this upper mated to a early production Stag lower (27xxx s/n) for over two years with more than 20k rds of steel and brass cased, 223 and 5.56, with over half being suppressed. I've punished this upper and have never had so much as a hiccup with it. Bottom line, I would trust my life with it.

  • 5
    Exactly what I was looking for...

    Posted by Matt on 11th May 2020

    Exactly what I was looking for, stag quality is always top notch! Good upper without breaking the bank.