LANTAC USA USR, Upper Standard Receiver, 556NATO, AR-15, M4 Feed Ramps, Anodized Black
Lantac USA
Overview
The LanTac USA LLC USR is a stripped upper receiver designed for the AR-15 platform, specifically chambered in 5.56 NATO. Featuring M4 feed ramps, this upper ensures reliable feeding and smooth operation when paired with various barrels and bolt carrier groups. This receiver is commonly utilized in builds that incorporate a carbine gas system, making it a versatile choice for builders looking to create reliable, high-performance rifles.
Specifications
LANTAC USA USR, Upper Standard Receiver, 556NATO, AR-15, M4 Feed Ramps, Anodized Black
Available Merchants(5)
Prices checked
Stock Alert
Build history on GunPartPicker
Builders have added the LANTAC USA USR, Upper Standard Receiver, 556NATO, AR-15, M4 Feed Ramps, Anodized Black to their builds on GunPartPicker. Since April 2026, it ranks #1239 of the 2,066 upper receivers builders have added.
It was out of stock everywhere we track every time we checked in October 2026, and today none of the 5 retailers we track has it in stock right now. Listed prices start at $139.99 at Optics Planet 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
LANTAC Raven N15 Billet AR-15 Upper & Lower Receiver Set 01-RV-SET-N15-RAVEN Rifle .223/5.56 Semi-Auto Flared Magwell, 7075-T6 Anodized Black.
LANTAC Spada AR-15 13.5" Free Float Handguard - 01HG013SPADAML
Expo Arms Combat Series 11.5" 5.56 NATO Chrome Lined AR-15 Barrel - Socom Profile - Carbine Length
JP AR-15 Silent Captured Spring - Gen 2
Radical Firearms A2 Flash Hider 5/8x24
Radian Raptor Charging Handle & Talon Safety Selector Combo - OD Green
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 LanTac USA LLC USR, Upper Standard Receiver, 556NATO, AR-15, M4 Feed Ramps, Anodized Black
| Build | Parts | Total |
|---|---|---|
 | 24 | $1781.71 |
 | 8 | $1210.17 |
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