Stag 15 VRST S3 Upper

Current stock: 0


Stag 15 VRST S3 Uppers feature Stag's high quality and long-lasting durability standards, outfitted with Diamondhead's lightweight, free float 13.5" VRST Series 3 M-LOK Handguard.

The Stag 15 VRST S3 Upper features a 5.56x45mm NATO chamber 16" 1/7 chrome lined barrel with a 13.5" free float M-LOK 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: Diamondhead VRST Series 3 M-LOK 13.5" Handguard

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

Bolt Carrier: None

Gas System: Carbine Length with Low Profile Gas Block

Charging Handle: None

SKU: STAG570024N

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 warranty coverage for this upper?

A: This upper has a one year warranty.

Q: Is this upper compatible with other manufacturer's lower receivers?

A: As long as the lower accepts a mil-spec upper, all of our uppers will function properly.


Reviews (2)

Phil E 5th Jun 2018

Very Pleased

Although I haven't fired the weapon yet, I believe the Stag Arms quality is known and the name speaks for itself. I was hesitant to order this model at first because it looked very angular and I wasn't sure I would appreciate the appearance. I know that doesn't matter to some, but it does matter to me a bit. As Mr. Kennedy said, the pictures don't flatter this upper. I was looking for the Diamondhead handguard that I'd seen get many compliments in some reviews. I took quite a bit to verify that this DOES have that handguard. When you see the upper in person, it doesn't have nearly the angular sharpness that it appears to have in the pictures. The underside is more rounded, and there are smooth rounded grooves that are very comfortable to the hand. I believe the VRST in the name refers to the Diamondhead VRS T handgaurd. Search that up for a better view... As for me, I'm more than pleased with my purchase.

John Kennedy 18th Mar 2018

Just Great

I received this upper on Friday, and had the chance yesterday to pair it with a assembled lower receiver from Palmetto State Armory. Came together beautifully with no misalignments whatsoever. The upper itself is very high-quality, and the pictures on the website just don't do it justice. What even makes this better is the fact that very few companies are offering chrome-lined barrels at this price point which really makes this an exceedingly good value. I will definitely use Stag Arms for my uppers in the future if I ever build another rifle.