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Questions & Answers
Does this have the chrome lined barrel? Manufacturer Answer

Those upper barrel assemblies do not have chrome lining at this time. Unless specified as having chrome lining.

by Luth-AR, Manufacturer, January 29, 2026
Customer Reviews
Helpful Positive Review
Luth AR upper by WestTejas, Verified Owner, April 25, 2024
Bought this upper to have along side my Gordy build. I through a matech rear sight on it and it was dead one. This is a great upper and I love the slim handguard
2/2 found this helpful
Most Recent Reviews
Unbeatable value! by Doug Harris, Verified Owner, September 3, 2025
My package arrived a day early, in discreet packaging, well protected with bubble wrap. The moving parts were pre-lubricated, and fully assembled in perfect condition. All I needed to do was install my rear irons, and it was ready to go! For my money...
Read More...
Read All 2 Reviews
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made-in-usa-flag Made in USA

Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.

Product Info for Luth-AR A3 Complete Upper Receiver Assembled

Starts with our 14.5? M4 SOCOM profile barrel with F Marked Front Sight Base, 5.56mm, made from 4150 CMV steel with a 1-7? twist mated to our A3 Flattop receiver which includes our bolt carrier, charging handle, forward assist and ejection port cover.image

Specifications for Luth-AR A3 Complete Upper Receiver Assembled:

Manufacturer: Luth-AR
Gas System Length: Carbine Length
Barrel Twist Rate: 1-7
Firearms Threads Per Inch: 1/2x28
Muzzle Device: A2 Flash Hider
Finish: Anodized
Color: Black
Gun Model: AR-15
Fabric/Material: Aluminum, Steel
Gas Block Journal Size-Diameter: .750 in
Gun Rail: Picatinny
Gun Make: AR Platform
Barrel Material: 416R Stainless Steel
Weight: 8 oz
Magazine Included: No
Country of Origin: USA

Package Contents:

  • Luth-AR A3 Complete Upper Receiver Assembled
  • HG-A2 - 2-Piece CAR style Handguard
  • BL-F14-7 - 14.5in M4 SOCOM Profile Barrel with F marked Front Sight Base
  • FTT-EA1 - A3 Upper Receiver Assembled
  • BC-A-223 - Fully Assembled Bolt Carrier - 5.56mm
  • BL-04A - Carbine Gas Tube
  • BL-750F 750 F Marked Front Sight Base
  • UR-19 - Charging Handle
  • BL-06-A2 - A2 Flash Hider

Luth-AR A3 Complete Upper Receiver Assembled Orderable Models

List of Orderable Models

  • Luth-AR A3 Complete Upper Receiver Assembled, 11.5in, Government Profile Barrel, 5.56mm, 1-7 Twist, 1/2 x 28 Thread, A2 Flash Hider, w/ F Marked FSB and 2-Piece CAR Style Handguard, Black, BA-F11-7 , MPN: BA-F11-7 , UPC: 812058031772 , Code: 3FN-UFH-TYGH-BA-F11-7
  • Luth-AR A3 Complete Upper Receiver Assembled, 16in, Lightweight Barrel, 5.56mm, 1-7 Twist, 1/2 x 28 Thread, A2 Flash Hider, w/ Key MOD Palm Handguard, Black, BA-L16-7 , MPN: BA-L16-7 , UPC: 812058031840 , Code: 3FN-UFH-TYGH-BA-L16-7
  • Luth-AR A3 Complete Upper Receiver Assembled, 14.5in, SOCOM Profile Barrel, 1-7 Twist, 1/2 x 28 Thread, A2 Flash Hider, w/ F Marked FSB and and 2-Piece CAR Style Handguard, Black, BA-F14-7 , MPN: BA-F14-7 , UPC: 812058031796 , Code: 3FN-UFH-TYGH-BA-F14-7

Luth-AR A3 Complete Upper Receiver Assembled Unavailable & Discontinued Models

List of Unorderable Models

  • Luth-AR A3 Complete Upper Receiver Assembled, 14.5in, M4 Government Profile Barrel, 5.56mm, 1-9 Twist, 1/2 x 28 Thread, A2 Flash Hider, w/ F Marked FSB and 2-Piece CAR Style Handguard, Black, BA-F14 , MPN: BA-F14 , UPC: 812058031789 , Code: 3FN-UFH-TYGH-BA-F14
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Last updated 2026-07-05 UTC.