Gibbz Arms G4 Side Charging Upper Receiver
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Gibbz Arms
Overview
The Gibbz Arms G4 Side Charging Upper Receiver is a stripped upper designed for the AR-15 platform, specifically chambered in .223 Wylde. This upper receiver features a side charging mechanism, allowing for easier manipulation while maintaining a streamlined profile. Builders often incorporate this upper in mid-length gas system setups, optimizing performance and reliability for a variety of shooting applications.
Specifications
August 2026 on GunPartPicker
Gibbz Arms G4 Side Charging Upper Receiver ranked #168 of the 690 upper receivers builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #203 of the 1,635 upper receivers builders have added. Builds with this upper receiver are nearly all chambered in .223 Wylde, mostly on mid-length gas (67%, then pistol-length 33%), and nearly all AR-15.
Today the one retailer we track is out of stock. Listed prices start at $245.99 at Brownells 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 20 builds that include this one
Noveske Rifleworks 300 AAC Blackout Pistol Length AR-15 Barrel With Gas Block - 10.5"
LMT MARS-L Ambidextrous AR-15 Stripped Lower Receiver
FAXON Firearms 5.56 M16 Bolt Carrier Group Nitride TIN PVD
Midwest Industries Mid-Length Handguard M-LOK
Rise Armament Ra-524 Blitz Performance Trigger Drop-In
Superlative Arms AR-15 .750in Solid Adjustable Piston System Solid Set Screw Melonite QPQ Piston Gas Block Mid Length Op Rod Right Hand Full Auto Dark
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all 2 →Builds in the community that include the Gibbz Arms G4 Side Charging Upper Receiver
| Build | Parts | Total |
|---|---|---|
 | 9 | $1108.87 |
 | 24 | $4036.51 |
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