Spikes Tactical Complete AR-15 Lower - Color Fill - M4 Stock

Manufactured by Spike's Tactical
Manufactured by Spike's Tactical
5 Reviews

In Stock

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

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 Lower is the standard lower receiver on which many of their complete rifles are assembled. It features the color filled Spike’s Spider Logo prominently on the left side of the magwell. This is a complete lower receiver with MIL-SPEC internals and an M4 6-position adjustable stock. All completely built lower receivers have been assembled, inspected, and tested by Spike's lowers department.

  • Color filled Spike’s Spider logo and bullet pictogram selector markings.
  • 7075-T6 forged receiver.
  • Multi-caliber.
  • MIL-A-8625F Type III Class 2 hard coat anodized finish.
  • Low shelf, RDIAS compatible.
  • Jeweled MIL-SPEC trigger.
  • Billet magazine release button.
  • Spike’s Tactical Pro Grip.
  • 6-position MIL-SPEC buffer tube, castle nut, and staked latch plate.
  • 17-7 stainless buffer spring.
  • ST-T2 buffer.
  • Spike's Tactical M4 Stock.
  • Weight: 1 lb 12 oz.
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AssemblyComplete Assemblies
BrandSpike's Tactical
Caliber MarkingMulti-Caliber
FinishHardcoat Anodized
Manufacturer.Spike's Tactical
Receiver Material7075-T6 Aluminum
Trigger Pin DiameterMIL-SPEC .154
Weight1.94 lbs

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

5 reviews

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Spike's Again


All of my AR's have Spike's Complete lowers. This color fill was claimed by my wife. Great job no slop on coloring job. Fit and finish off lower is top notch. Only thing I replaced so far is the stock, pistol grip and trigger guard. The trigger will get replaced with an SSA soon. This lower fit perfectly to a new BCM upper. Tight and aligned right. BCM parts used in replacement of stock, pg and tg in FG.

Spikes Tactical Complete Lower


No problems . Works great.Dropped in a CMC 3.5 lb. trigger. What a difference. Spend the money on the trigger and use an old scope and you'll see better groups.

None Better

by -

They don't make them any better than this. Prettier, maybe. More expensive, sure. But not better. 5/5.

Can't beat Spikes


To my knowledge PA is the only retailer to offer this lower in which the Spider logo is painted in. All the others I've seen the logo is not painted in - just the safety selector emblems. Crisp trigger and quality buffer assembly. Great price.

Great lower


Fast shipping. Was not impressed with the butt stock so I changed it to a Magpul. Spend the extra money for a high quality butt stock. The color markings on the lower were perfect. I would have to say Spikes knocked it out of the park on this one.