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Spike's Tactical Upper Receiver Forged M4 Flat Top AR15
Spike's Tactical Upper Receiver Forged M4 Flat Top AR15

Spike's Tactical Upper Receiver Forged M4 Flat Top AR15

Part Number:SFT50M4
On sale: $110.95
Retail Price:$129.00
You Save:$18.05(14%)
In Stock.

Spike's Tactical Upper Receiver Forged M4 Flat Top SFT50M4



The Spike’s Tactical M4 flat top upper receiver is machined from a Mil-Spec 7075 T6 forging with a durable Type III Hardcoat Anodized finish that also features laser engraved T-Markings, M4 feed ramps cut into the receiver before Anodizing to avoid future reliability issues, and finished with our spider logo. We’ve also included a forward assist and ejection port door cover already installed in the upper for you!


  • Machined from a Mil-Spec 7075 T6 forging
  • Type III Hardcoat Anodized finish
  • Ejection port door cover and forward assist come pre-installed


  • Spike’s Forged M4 Flat Top Upper Receiver (Stripped)
  • Pre-installed forward assist and ejection port door cover
  • Spike's Tactical Lifetime Warranty


1) 5/5 STAR *****

Just recieved my upper today. Fits great on my Rock River lower.. Love the look and cant wait to finish my build. thanks, Spikes
Date Added: 03/08/2011 by Robert Dulaney

2) 5/5 STAR *****

This is a perfect example of great american machine work, and it is going to look great on my Jolly Roger lower.... like waiting to unrap a Christmas present!
Date Added: 06/24/2010 by Jack Blackwell

3)5/5 STAR *****

Fit and Finish is better than great! Matches up to my spikes lower (purchased through a different vendor) better than if I'd bought a matching set from someone else.
Date Added: 04/08/2010 by Joshua Guthans

4) 5/5 STAR *****

Absolutely remarkable M4 flat top upper receiver! The anodized finish is perfect, T-markings are clean and clear, and the Spike's logo tops it off showing you mean business. Hands down, this upper receiver is a wise investment for anyone starting their new build. At this price and quality its a guaranteed steal! Received my new Spike's M4 flat top upper on 2-15-2010...2 thumbs up, way up!
Date Added: 02/16/2010 by Lucky Roman

5) 5/5 STAR *****

Excellent product! Looks great on my dpms lower. Finish is great, and the feedramps look real good!
Date Added: 01/22/2010 by Scott Freed

6) 5/5 STAR *****

Excellent fit and finish. Great for any build. Feedramps are perfect and anodizing is flawless.
Date Added: 01/06/2010 by Nick Nyzowyj

7) 5/5 STAR *****

I bought one of these and built an awesome 16"Tactical with it. Fit and finish is excelent. M4 ramps matched perfect with the barrel. The BCG was also from Spikes and I get nothing but compliments on how it looks as well as how accurate this piece is. Never a jamb or misfire. I have 3 or 4 people who want me to duplicate my rifle for them.
Date Added: 03/18/2009 by Ralph Zobjeck

8) 5/5 STAR *****

This looks and feels great on my Spike's pistol lower. You can't beat the price.
Date Added: 02/10/2009 by James Lindsay

Customer Reviews

5 Stars
Whats there not to like about this, its Spikes Tactical stripped upper ready to go, great product, all the other parts fit perfectly on this upper, wold order it again , thanks
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Reviewed by:  from York PA. on 9/14/2021

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