Luth-AR Complete Upper Receiver Assembly .223 29in 20in Bull Rifle 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized Manganese Phosphate Silver/

2 options

27" · 18"out of stock
29" · 20", this page

Luth-AR Complete Upper Receiver Assembly .223 29in 20in Bull Rifle 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized Manganese Phosphate Silver/ - Upper Receiver for AR-15 - view 1

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Luth-AR

Overview

The Luth-AR Complete Upper Receiver Assembly is designed for the AR-15 platform, featuring a 29-inch barrel specifically chambered in .223 Remington. With a twist rate of 1:9, this assembly is optimized for stabilizing a variety of bullet weights, making it versatile for different shooting applications. The assembly includes a threaded muzzle with a 1/2x28 pitch, allowing for easy attachment of muzzle devices, and it is well-suited for precision builds or long-range applications.

Specifications

MPNFTBLB20

AssemblyComplete

PlatformAR-15

Barrel Length29

Caliber.223 Remington

Twist Rate1:9

Thread Pitch1/2x28

Receiver TypeA2

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Luth-AR Complete Upper Receiver Assembly .223 29in 20in Bull Rifle 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized Manganese Phosphate Silver/

2 options

27" · 18"out of stock
29" · 20", this page

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September 2026 on GunPartPicker

Luth-AR Complete Upper Receiver Assembly .223 29in 20in Bull Rifle 1x9 1/2x28 Picatinny Key MOD A2 Flash Hider Anodized Manganese Phosphate Silver/ ranked #267 of the 615 upper receivers builders added on GunPartPicker in September 2026. Builders on GunPartPicker first added it to a build in March 2026.

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Updated Oct 11, 2026 · from real builds on GunPartPicker