Spike's Tactical AR-15 Billet Upper Receiver Assembly

Manufactured by Spike's Tactical
Manufactured by Spike's Tactical
4 Reviews

Out of Stock



The Spike’s Tactical Gen II Billet Upper Receiver is not just another cosmetic alternative to forged upper receivers. It has been designed with functional upgrades that aren't available on other billet upper receivers! It is machined out of 7075-T6 billet aluminum and anodized with a durable Type III hardcoat. M4 feed ramps are cut before the anodizing process to avoid reliability issues down the road. The side walls of the receiver are flared to eliminate accidental bolt release. The upper receiver has also been machined to accommodate the Magpul BAD lever or similar aftermarket bolt catch levers.

NOTE: This billet upper is not compatible with all aftermarket bolt catches.


  • 7075-T6 construction
  • Standard forward assist and ejection port door preassembled.
  • Ejection port door laser engraved with 'Made in U.S.A.’ and a U.S. Flag.
  • Weight: 10.4 oz.

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AssemblyAssembled Uppers
BrandSpike's Tactical
Feed RampsM4
FinishHardcoat Anodized
Forward AssistAssembled with Forward Assist
ManufacturerSpike's Tactical
Port DoorAssembled with Port Cover
Receiver Material7075-T6 Aluminum
T MarksT-Marked

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see www.p65warnings.ca.gov

Ratings & Reviews

4 reviews

  • 3 stars
  • 0 reviews
  • 2 stars
  • 0 reviews
  • 1 star
  • 0 reviews

Amazing billet upper


And it looks like a race-car with all the angles and precision cuts. It matches to the Spike's Warhog billet lower, too! My Daniel Defense barrel fit snug and perfect; the BCM KMR-15 barrel nut and free-float hand-guard fit snug and perfect; and my Primary Arms 1-6x ACSS scope fit on the 1913 Pic rail without issue. This is a great upper, and worth the extra money. If you're thinking Spike's can't live up to other billet uppers, think again. This is a great product.

Very nice


The only reason I give it 4 instead of 5 stars is because of the price. I'm not saying it is over priced necessarily because most billet pieces are around the same general margin it just could be an issue for some. It caused me a little buyers remorse but I haven't regretted it since I pulled it out of the package it's nicely done and I'm definitely going to be proud of it for a long time. Always thanks to PA my primary source for parts.

Very Very Nice Product!!


The Upper is AWESOME!!! I had no issues what so ever fit and finish were Outstanding all to spec and It gave it a real space Age Look with my Spike Lower. So much I had to purchase another from Primary Arms... I used another Spike Lower this time that I have wanted to use for sometime and just couldn't find the right Upper for it...Until now the "The Jack" by Spike was the finish to a perfect built. The skull (The Jack")Lower Married to the Upper perfectly..It was the Cherry on top of the Sundae Better then I could have ever imagined!!! Thank You Very Much Primary for all of your help and time with me on the phone!!

Awesome Fit & Finish!

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I purchased this upper for my Spike's Gen II ambi lower which I purchased elsewhere as PA was out. On top of being a really nice looking set they fit together with surgical precision! This was a pricey set but worth it with no doubt! 110% Pleased with Primary Arms & Spike's Tactical