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
Available Merchants(1)
Prices checked
Stock Alert
October 2026 on GunPartPicker
Gibbz Arms G4 Side Charging Upper Receiver ranked #103 of the 844 upper receivers builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #137 of the 2,050 upper receivers builders have added. Builds with this upper receiver are nearly all chambered in .223 Wylde, split between mid-length (50%) and pistol-length (43%) gas systems, 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 37 retailers
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Frequently Built With
The part most often added in each category by the builds that include this one
Proof Research 12.5" 300BLK Carbon Fiber 1:7 Pistol AR-15 Barrel - 100523
LMT MARS-L Ambidextrous AR-15 Stripped Lower Receiver
FAXON Firearms 5.56 M16 Bolt Carrier Group Nitride TIN PVD
Midwest Industries Suppressor Series M-LOK AR-15 Handguard - 10.5"
Cry Havoc Tactical 223 Two Pin QRB KIT - Mid Length Gas Tube
Rise Armament Ra-524 Blitz Performance Trigger Drop-In
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 builds →Builds in the community that include the Gibbz Arms G4 Side Charging Upper Receiver
| Build | Parts | Total |
|---|---|---|
 | 9 | $1063.29 |
 | 24 | $4010.29 |
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