Freedom To Boom Deals Extended!
12% Off Almost Everything w/ Code: FREEDOM12 Or Free Shipping On $99+ w/ Code: 99FREESHIP

Freedom To Boom Savings Extended!
12% Off Almost Everything w/ Code: FREEDOM12 or Free Shipping On $99+ w/ Code: 99FREESHIP

Daily Deal: Challenger Target Load 12Ga 1-1/8oz #8 250-rds ~~$102.99~~ $84.99- Get Yours!

AR-15 COMPLETE M4 LOWER RECEIVER Reviews & Ratings

SPIKES TACTICAL AR-15 COMPLETE M4 LOWER RECEIVER

Semi-auto lower receiver is machined from a 7075 T6 aluminum forging to mil-spec dimensions for precise fit and outstanding performance. Ruggedized hardcoat anodized finish resists scuffs, scratches, and wear. Stamped bullet selector position markings notify operator when weapon is in “safe” or “semi-auto.” A “full-auto” position is not selectable but gives this semi-auto lower receiver the appearance of being multi-burst capable. Magazine well features Spike’s spider logo and multi-cal engraving.

Note: Complete Lower w/Buttstock includes stainless steel trigger, black oxide finished trigger guard and hammer assembly, pistol grip, six-position mil-spec buffer tube (1.146" O.D.), ST-T2 tungsten heavy buffer, mil-spec 17-4 stainless steel buffer spring, and Spike’s M4 stock.

SPECS: Receiver - 7075 T6 aluminum, hardcoat anodized, matte black finish. Buttstock – Reinforced molded polymer, black. “Cal Multi” stamped on side of magazine well. .154" hammer/trigger pin holes. .250" takedown/pivot pin holes.

See all of our AR15s and AR15 parts here.

View Product

Write a review

5 Stars

100%

4 Stars

3 Stars

2 Stars

1 Stars

Reviews Summary

Customers rave about the AR-15 Complete M4 Lower Receiver's exceptional quality, smooth trigger, and perfect fit. Many appreciate its compatibility with various uppers, performance, and affordable pricing. Some minor critiques include basic stock and grip quality, but overall, it's highly recommended for its value and reliability.

What Reviewers Are Saying

Product Quality

85%

Reviewers consistently highlight the outstanding build quality and performance of the lower receiver, noting its exceptional fit, finish, and smooth trigger action. This theme is significant, as it underlines the product's craftsmanship and overall reliability, with many stating it's comparable to higher-priced competitors.

Value for Money

70%

Several customers express satisfaction with the pricing of the lower receiver, considering it a great deal compared to other brands like Bushmaster and Rock River. This theme is relevant as it indicates that customers feel they are getting a premium product without the associated high cost.

Compatibility and Performance

60%

Many reviewers commend the lower's compatibility with various upper receivers and its flawless performance during use. This theme is crucial, especially for those who frequently upgrade or modify their firearms, indicating that the product meets the diverse needs of shooters.

Aesthetic Appeal

45%

Several reviews mention the appealing design features, such as the spider engraving and clean edges, making the lower a visually attractive addition to any firearm. This theme reflects the importance of aesthetics in customers' purchasing decisions.

Minor Drawbacks

25%

While overwhelmingly positive, a few customers mention that the basic stock and grip aren't particularly impressive, suggesting potential areas for improvement. This theme is noteworthy as it reflects the expectations of users who might prefer a more bespoke setup.

Sort by Filter by rating

Great lower

Wow very nice lower. The trigger is nice and smooth, Fit and finish is very nice. Definitely will buy another.

by Donald Carter on July 10, 2023

Verified Purchase

Was this review helpful? 2

Top-Notch this One!

Hey! NO Doubt about this one... Excellent all around! Very satisfied with build quality and function. Using this on a .204 Ruger upper but of course, it will fit all of my AR15 uppers. ^..^~~

Great quality, excellent deal!

Great quality! I bought the Spikes as all my other guns are Colts and wanted one small pin receiver to try some of the new triggers coming out. All the Colts are large pin guns with the hard to find JP adjustable triggers. I knew the Spikes was as good as anything out there from talking to other shooters. My guns get heavy use in 3 gun and have various optics but are all very similar lowers. With the Spikes I found an exceptional trigger from the factory that had take up and over travel much like I set in the Colts with the set screws. I dropped in a yellow JP hammer spring and was so impressed I won't change it!!! It's unbelievably good and is now my carry gun with the Aimpoint ML3 ( ( 2nd from the top ). I'd buy Spikes again and when my son wants another build ( also a LEO ) we will start with this SPIKES!!!

Great Product

This is an awesome complete lower and great on the price. Good and tight fit with a spikes upper reciever. have used for awhile and performs flawlesy used with my 300AAC Blackout.

Great

I mated this to a Spikes Midlength upper and it has performed flawlessly. It works the way it should. An empty mag will drop free when its released. This was a relief for me because Ive been shooting a more expensive AR and I always have to pull the empty mag free. Obviously, the basic m4 stock and basic pistol grip arent that great but most people change them out anyway. It has a better than average trigger. Most stock triggers suck. This one isnt so bad. Overall, this lower has been a pleasant experience. Im confident that made the right purchase this time around.

Awesome Lower

Fit and finish is perfect. Spikes even goes the extra distance with the "take down pin detent mod"! Rollmark is crisp and clean w/ a great looking logo. Color fill on the selector markings really stands out. Buy with confidence you will not be dissappointed. Mated to a Noveske upper for the perfect heavy use AR platform.

perfect

Its PERFECT! You can't beat the price for the quality of product spikes puts out, I will buy many,many more of these

Great Lower Receiver, smooth Transaction

Very well made. It performs great and matches well with several uppers. It's also a head turner with the spider engraving and fire control markings. It's clearly well machined and all edges are clean with smooth transitions. I would buy another and recommend this lower to friends.

superior product

Just received my Spikes lower after it had been on backorder. This lower is outstanding, fit and finish is excellent. Why pay more for Bushmaster, Rock River etc. when this is equal if not better.