Spike's Tactical AR-15 Upper Receiver Assembly
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.
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.
Ratings & Reviews
My experience purchasing & receiving products fro
by joseph arsenault
My experience with primary arms is excellent their products were not only top-notch very easy to find their site was very easy to maneuver through the items placing the order was very easy and I received my item faster than I've ever received an item from any other firearms company thank you very much you will have my long-standing business excellent job primary arms!!!!
by R H
A+ very pleased with product and speed of transaction.
by Cody Cochran
Again, greatly impressed with my order. Very fast shipping. My upper works flawlessly! My first stop when shopping for parts is PA! Thanks for the great service!
by Jordan Krenik
Always fast shipping. Spikes is spikes good quality.
appears very high quality, fast shipping from Primary Arms
by BART LIGUORI
Arrived quickly. As described. Perfect for my SBR build.
Quality & Value.
by Charles Thompson
As a mil-spec upper goes, this one is excellent. As part of an all Spikes, SPR I am building, I am pleased with the upper to lower fit, matching finish, ans tidy minded approach to fit and finish. Cannot wait to put rounds through it. Alresdy recommending Spikes to several friends. As always, awesome customer service and convenience from P.A.
Spikes upper receiver
by Matt Nalbone
As always, nice fit and finish to compliment my Spike's lower. This is my second ST upper receiver and am very pleased. Fast shipping and excellent customer service.
Spikes forged M4 Upper
by David C Boyd
Beautifully finished to match a spikes lower. Great service as usual from Primary.
less than I expected
Bought the upper expecting it to match my Spike's Honey Badger lower but it didn't. The anodizing was a lot lighter than my spikes lower receiver (nice dark black)and it should have been a Blemished upper because of the shotty anodizing and the scratches it arrived with. Also was pretty loose when I mated it with the Spike's lower receiver. Primary Arms shipped fast and they get an A+ but the spikes upper gets a C-.