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Spikes Tactical M4 Flat Top Upper
$115.00 $103.50 Save 10%
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Most Helpful Positive Review simple and lightweight
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.
Most Helpful Negative Review Spikes tactical M4 upper
My first time buying from this site. I was excited to get my spikes upper for the price I got it for. When it arrived the packaging looked a little beat up. They didn't even bother to put paper or bubble wrap to protect it from getting banged around the delivery truck. When I took the upper out the ...
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Great product

by Steven, Verified Owner from AL, United States Written on June 15, 2026
Great product. Recommend buying this for a build.
Would recommend: Yes
Was it helpful to you? Yes | No

Top Knotch Upper

by RedLetterRevenge, Verified Owner from TX, United States Written on May 27, 2026
This upper definitely fits snug in my aero lower. The last upper I had installed on those lower was very loose in comparison and even adjusting the screw under the take down pin didn’t take up all the slop. With this upper there’s no worry of any kind of looseness or slop between it and the lower.
Would recommend: Yes
Was it helpful to you? Yes | No

spikes upper receiver

by Bamboo12, Verified Owner from MT, United States Written on May 18, 2026
solid build with milspec dust cover. got this upper to mate with spikes lower. i love the little spider emblem on top of the rail.the black anodizing kinda more shiny than other brand uppers. the color matches the spikes lower though. best buy in my opinion spikes QC is top and within my budget.
Would recommend: Yes
Was it helpful to you? Yes | No

Strong and Durable Upper

by Alex, Verified Owner from CA, United States Written on May 16, 2026
Pairs great with a Spikes lower, I use this with a .300 blackout setup and it runs great. Definitely buying another one to start another build with.
Would recommend: Yes
Was it helpful to you? Yes | No

Spikes upper reciever

by Mike, Verified Owner from AZ, United States Written on April 23, 2026
Spikes upper receiver. I bought this upper to pair with the Spikes lower for a lightweight build. Good tight fit and great finish on the reciever.
Would recommend: Yes
Was it helpful to you? Yes | No

Spikes upper

by Joe, from OH, United States Written on March 18, 2026
Love it. Great Spikes quality, as always. Fit and finish are excellent. I mated it to a Wilson Combat lower, fit perfectly.
Would recommend: Yes
Was it helpful to you? Yes | No

Spikes M4 upper receiver

by Mitchell, Verified Owner from MO, United States Written on March 5, 2026
Fits perfectly with a PSA lower receiver. Functions with a KAK K SPEC bolt carrier just fine. No issues with quality, fit and finish, or accepting other brand aftermarket components. Would highly recommend
Pros:
  • great quality
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No

Loose tolerance scrap

by T.F., Verified Owner from N/A, Isle of Man Written on October 16, 2025
Steer clear of spikes uppers amd lowers for a while. These things should be labeled as tolerance blems. Pin lugs are undersize. Pin holes are oversized and yhe lugs arent even centered to the forging.
Best Used for:
  • Paperweight
Would recommend: No
1 of 3 found the following review helpful.
Was it helpful to you? Yes | No

Used for 300 blackout build

by James Hughes, Verified Owner from KY, United States Written on June 5, 2025
Nice stripped upper, wish it had a roll mark or stamped spiked tactical , only thing saying it is spikes tactical it the spider logo painted above charging handle , once it rubbs off , you will have no proof that it's a spikes tactical ,
Pros:
  • quality product
Cons:
  • Poor markings
Would recommend: Yes
Was it helpful to you? Yes | No

Review of upper spikes tactical

by Mike, Verified Owner from TX, United States Written on April 26, 2025
Exactly what I was looking for quick shipping good price
Pros:
  • Matches the lower
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No
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Last updated 2025-11-12 UTC.