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Questions & Answers
This will shoot .223 as well as the 5.56? Expert Answer

Yes. The upper receiver does not determine the exact caliber, that is determined by the internals/barrel. As long as this is built out for a 5.56 NATO or .223 Wylde, it will shoot .223 Remington with no problems.

by Armando R., Gear Expert, June 16, 2021
does this have a spider logo on top? Expert Answer

Yes, both of these will have the Spike's Spider logo on top at the end of the picatinny rail over the charging handle.

by Armando R., Gear Expert, August 23, 2019
Customer Reviews
Helpful Positive Review
Spikes no provision upper receiver by Kjg345, March 5, 2020
Great upper receiver thats really lightweight. The unit weighed 5.8 ounces to top of a lightweight build i was doing. Fit and finish is really nice as well. Would recommend to a friend and will be purchasing more.
1/1 found this helpful
Helpful Positive Review
simple and lightweight by manimal, Verified Owner, August 8, 2020
This is a solid, simple and lightweight upper receiver. A great upper for a sport shooter or someone that is looking to minimize their build. I’m a fan of its slickness. There isn’t much to snag on gear when running and gunning.
1/1 found this helpful
Helpful Positive Review
Spikes Tactical upper by Devo, May 21, 2020
Awesome product. Made in the USA. Quality is amazing. Crisp & precise. Cant go wrong with Spikes tactical they stand 100% behing their products. As for pricing Optics Plannet can't be beat. They have everything needed to create and upgrade any AR15 P...
Read More...
1/1 found this helpful
Helpful Positive Review
Well made, but.. by Ninja, November 30, 2022
This is very nicely machined and anodized, but it fits a little bit loose with my spikes lower. Not a big deal, may cerakote it and that might help, but I figured matching a Spikes upper and lower would have been a little more snug.
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Helpful Positive Review
Perfect Match by Cedric Estes, Verified Owner, October 9, 2018
Ordered this upper to match with a lower I received from a local vendor. It was a perfect match as the description was exactly what I went by when I placed my order. After 500 rounds placed down range I did not have a single issue.
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Helpful Positive Review
Spikes Upper by Andrew, Verified Owner, April 2, 2020
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Read All 51 Reviews
Color:
Black
Finish:
Anodized
Fabric/Material:
7075 T6 Construction
Caliber:
5.56x45mm NATO
Gun Model:
M4
Additional Features:
Forged M4 Flat Top Multi Cal
Condition:
New

Code: 2A8-UPR-STM4FTUPR-SFT50M4

MPN: SFT50M4

UPC: 855713006005

List: $115.00Save 10%
$103.50

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made-in-usa-flag Made in USA

Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.

Product Info for Spikes Tactical M4 Flat Top Upper

The Spikes Tactical M4 Picatinny Upper is designed to be a superior replacement or upgrade upper for your M4 rifle. Built with the same high quality that is used on factory builds, these AR15 Upper Receivers by Spikes Tactical are constructed from 7075 T6 aluminum and feature a forward assist as well as an ejection port door, making installation easy. Make sure your rifle is operating at peak efficiency, install the Spikes Tactical M4 Aluminum Flat Upper.image

Specifications for Spikes Tactical M4 Flat Top Upper:

Manufacturer: Spikes Tactical
Color: Black
Finish: Anodized
Fabric/Material: 7075 T6 Construction
Caliber: 5.56x45mm NATO
Gun Model: M4
Additional Features: Forged M4 Flat Top Multi Cal
Condition: New
Country of Origin: USA

Features of Spikes Tactical M4 Picatinny Upper:

  • Machined from a Mil-Spec 7075 T6 forging
  • Type III Hardcoat Anodized finish
  • Ejection port door cover and forward assist come pre-installed
  • Chambered in 5.56x45mm NATO

Package Contents:

  • Spikes Tactical M4 Flat Top Upper

Spikes Tactical M4 Flat Top Upper Orderable Models

List of Orderable Models

  • Spikes Tactical M4 Flat Top Upper, SFT50M4 , MPN: SFT50M4 , UPC: 855713006005 , Code: 2A8-UPR-STM4FTUPR-SFT50M4

Spikes Tactical M4 Flat Top Upper Unavailable & Discontinued Models

List of Unorderable Models

  • USED Spikes Tactical M4 Flat Top Upper W/Out Provision for Forward Assist or door, SFT56M4, EDEMO2, Used, Condition Fair , MPN: SFT56M4-EDEMO2 , Code: 2A8-UPR-STM4FTUPR-SFT56M4-EDEMO2
  • USED, Spikes Tactical M4 Flat Top Upper W/Out Provision for Forward Assist or door, SFT56M4 , MPN: SFT56M4-EDEMO , Code: 2A8-UPR-STM4FTUPR-SFT56M4-EDEMO-OT-C
  • USED Spikes Tactical M4 Flat Top Upper W/Out Provision for Forward Assist or door, SFT56M4, EDEMO1, Condition Fair, Scratches , MPN: SFT56M4-EDEMO1 , Code: 2A8-UPR-STM4FTUPR-SFT56M4-EDEMO-SC-D
  • Spikes Tactical M4 Flat Top Upper W/Out Provision for Forward Assist or door, SFT56M4 , MPN: SFT56M4 , UPC: 855713006029 , Code: 2A8-UPR-STM4FTUPR-SFT56M4
  • USED, Spikes Tactical M4 Flat Top Upper, SFT50M4 , MPN: SFT50M4-EDEMO , Code: 2A8-UPR-STM4FTUPR-SFT50M4-EDEMO-RE-C
  • USED Spikes Tactical M4 Flat Top Upper, SFT50M4, EDEMO18, Condition Fair, Scratches , MPN: SFT50M4-EDEMO18 , Code: 2A8-UPR-STM4FTUPR-SFT50M4-EDEMO-SC-D
  • USED Spikes Tactical M4 Flat Top Upper, SFT50M4, EDEMO17, Used, Condition Fair , MPN: SFT50M4-EDEMO17 , Code: 2A8-UPR-STM4FTUPR-SFT50M4-EDEMO17
  • USED Spikes Tactical M4 Flat Top Upper, SFT50M4, EDEMO21, Used, Condition Fair , MPN: SFT50M4-EDEMO21 , Code: 2A8-UPR-STM4FTUPR-SFT50M4-EDEMO21
  • Spikes Tactical M4 Flat Top Upper W/Out Provision for Forward Assist, SFT55M4 , MPN: SFT55M4 , UPC: 855713006012 , Code: 2A8-UPR-STM4FTUPR-SFT55M4
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