Spike's Tactical STLS018 Spider Fire/Safe Stripped Lower 223 Rem 556NATO - Black
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Spike's Tactical
Overview
The Spike's Tactical STLS018 Spider Fire/Safe Stripped Lower is a forged lower receiver designed for the AR-15 platform, made from durable 7075-T6 aluminum. This stripped lower features a trigger pin size of .154, making it compatible with a wide range of trigger options, and it is optimized for calibers such as 5.56 NATO and .223 Wylde. Builders often choose this lower for versatile setups that require reliable performance in various shooting scenarios.
Specifications
Spike's Tactical STLS018 Spider Fire/Safe Stripped Lower 223 Rem 556NATO - Black
Build history on GunPartPicker
Builders have been adding the Spike's Tactical STLS018 Spider Fire/Safe Stripped Lower 223 Rem 556NATO - Black to their builds on GunPartPicker since February 2026. All time, it ranks #236 of the 1,002 lower receivers builders have added. Builds with this lower receiver are nearly all chambered in 5.56 NATO, nearly all on mid-length gas, and nearly all AR-15.
It was out of stock everywhere we track for all of August 2026, and today the one retailer we track is out of stock. Listed prices start at $107.10 at AR15 Discounts for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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Frequently Built With
The part most often added in each category by the 33 builds that include this one
CMMG AR-15 Mil-Spec Trigger KIT
B5 Systems Type 22 P-Grip - FDE
Strike Industries Cobra Billet Aluminum Trigger Guard - Red
Timber Creek Outdoors Ambidextrous Safety Selector - Black
LBE Unlimited AR-15 Magazine Catch Assembly, Black - ARMCASY
CMMG AR-15 HD Pivot and Takedown Pin Parts KIT - 55AFF3B
Builds Featuring This Part
See all 1 →Builds in the community that include the Spike's Tactical STLS018 Spider Fire/Safe Stripped Lower 223 Rem 556NATO - Black
| Build | Parts | Total |
|---|---|---|
 | 18 | $1362.24 |
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