Spike's Tactical AR-15 Upper Receiver Assembly

Manufactured by Spike's Tactical
Manufactured by Spike's Tactical
186 Reviews

In Stock

Standard orders will ship out 1 business day if ordered by 3:30 pm CST, Monday-Friday. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination.

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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. It features M4 feed ramps that are cut into the receiver before anodizing to avoid future reliability issues, laser engraved T-markings, and the Spike’s Spider logo. Includes a pre-installed forward assist and ejection port door cover.

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BrandSpike's Tactical
Feed RampsM4
FinishHardcoat Anodized
Forward AssistAssembled with Forward Assist
Manufacturer.Spike'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

California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.

Spikes Upper


Good fit / finish and matches my Spikes lower perfectly. I like the quality of Spikes products. And the price was right.Did have to eat some extra Wheaties though to get the Midwest Industries Gen 2 barrel nut to index to the next opening for my gas tube.

Awesome upper assembly!


Got it quickly in the mail. Had it installed in 30 minutes, fit great! Spikes does it again!

Awesome Service


Great all around experience with primary arms. My order was processed and shipped crazy fast. Will definitely be placing another order soon.

spike's upper sft50m4


great deal on quality build parts and quick to ship. will shop again!

Awesome !


great finish matches well with my anderson lower and shipped super fast !!

awesome upper


Great fit and finish no complaints.

Spike's Forged M4 Upper


great parts

Awsome price


Great piece !



Great price and fast shipment. The upper was as advertised can't wait to build it.

Spikes Forged Upper


Great price!! My gunsmith changed everything over to my AR with no problems.Technical staff at PRIMARY ARMS gave me clear, concise, information, about my purchase.THANK YOU