1. Home
  2. STLS910

Spike's Tactical Spider 9mm AR-15 Lower - Colt

Manufactured by Spike's Tactical
Manufactured by Spike's Tactical
4 Reviews
Click Here for Price $132.99 $161.10

In Stock

Orders of non-FFL items will ship same day if ordered before 3:30pm CST (M-F). FFL orders will ship within 5 business days if transfer details are provided.

For individual Officer, First Responder, and Military pricing please make sure you are logged in. for details

Items that are regulated by the ATF have restrictions and requirements: 
•Your entire order will ship only to a Federal-Firearm License holder.
•Please contact your local FFL prior to placing your order to ensure they are still accepting transfers.
•A copy of your order/invoice as well as the current FFL license for your local dealer must be emailed to ffl@primaryarms.com.



The Spike's Tactical Spider 9mm Lower is the perfect foundation for a pistol-caliber carbine build. Fully compatible with most standard AR-15 parts, this lower includes a proprietary magazine catch assembly and ejector factory installed. Features the Spike’s Spider logo engraved prominently on the left side of the magwell. Spike’s Tactical stripped lowers are made to the highest standards. If you are planning a build or just putting lowers away for a rainy day, you can't go wrong with Spike's lower receivers.

  • Dedicated Colt magazine well
  • Spike’s Spider logo with Bullet Pictogram selector markings
  • 7075-T6 forged receiver
  • MIL-A-8625F Type III Class 2 hardcoat anodized finish
  • Low shelf, RDIAS compatible
  • Built in trigger guard
  • Proprietary parts factory installed
  • Billet magazine release button
  • Weight: 13.9 oz
See More


BrandSpike's Tactical
Caliber Marking9mm Luger
FinishHardcoat Anodized
Receiver Material7075-T6 Aluminum
Trigger Pin DiameterMIL-SPEC .154
Weight13.9 oz
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

4 reviews

  • 4 stars
  • 0 reviews
  • 3 stars
  • 0 reviews
  • 2 stars
  • 0 reviews

Spikes tactical lower

by -

It’s super nice quality!!!

Great Lower

by -

This a great lower. I paired it with a PSA pistol lower kit and a PSA 9mm upper receiver. You get about half of the lower kit already assembled with the Spikes Spider. I have built a lot of AR's and this is by far the best looking receiver I've ever purchased. Buy with confidence.


by -

The ejector was bent right from the start out of the box. I contacted spike, was told to bend it till it worked. I've tried 3 different uppers, Buffers from 3oz - 15oz. Finally after around 200 rds as a bolt action the ejector broke.

I waited to post my review till after spike had talked with me. But honestly this lower is junk and Spikes customer service is beyond a joke

Great Quality


I have purchased this lower before and found it to of great quality. I am preparing to assemble a new 9mm AR and I will most assuredly use this lower again. I have found no issues at all and I highly recommend it to all those contemplating an AR9 build.