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Questions & Answers
Can this upper shoot .556 also? Expert Answer

No just .223 caliber.

by Ryan Tarczynski, Gear Expert, September 25, 2021
Just to make sure, is this chambered strictly for .223 or is this a .223 Wylde?

.223 Rem
416 SS
Threaded Barrel - Thread Pitch 1/2 x 28
Gas Block Diameter .936
Gas Tube Length - 16 inch Carbine, 18 inch, 20 inch, and 24 inch are Rifle
1-9 RH Barrel Twist
6 Lands and Groves
M4 Feed Ramp
Button Broached

by Gene, Verified Owner, February 9, 2020
Customer Reviews
Helpful Positive Review
Great upper by Shawn, April 1, 2022
1/2 inch groups with factory ammo after barrel break in. Fit and finish were good and fit tight to my lower. Upper ran flawless with no issues. Can't wait to see what it can do with good handloads. Over all a great product.
1/1 found this helpful
Most Recent Reviews
Nice product by gene, Verified Owner, October 29, 2023
The Luth-AR .223 Complete Upper Receiver Assembly is well made and an economical way to add a new AR by just unpinning the upper off another AR in your gun case and putting this one on..
Read All 2 Reviews
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Product Info for Luth-AR .223 Complete Upper Receiver Assembly

Luth-AR .223 Caliber fluted bull barrel made from 416 SST with a 1-9 twist mated to Luth-AR A3 Flattop receiver which includes bolt carrier, charging handle, forward assist and ejection port cover. The upper is then topped off with Luth-AR Lo-profile gas system and ergonomic 15in Palm Handguard with KeyMod slots and a Picatinny top-rail.image

Specifications for Luth-AR .223 Complete Upper Receiver Assembly:

Manufacturer: Luth-AR
Caliber: .223 Remington
Barrel Profile: Bull
Barrel Twist Rate: 1-9
Threads per Inch: 1/2x28
Handguard Type: Free-Float
Muzzle Device: A2 Flash Hider
Color: Black, Silver
Gun Model: AR-15
Condition: New
Fabric/Material: 416 Stainless Steel
Gas Block Journal Size-Diameter: .936 in
Handguard Length: 15 in
Handguard Style: Round Rail
Gun Rail: KeyMod
Gun Make: AR Platform
Barrel Material: 416R Stainless Steel
Bolt Carrier Group Included: MIL-SPEC
Charging Handle Included: MIL-SPEC
Magazine Included: No

Features of Luth-AR AR-15 Fluted Bull Barrel Complete Upper Barrel Assembly

  • .223 Rem
  • 416 SS
  • Threaded Barrel - Thread Pitch 1/2 x 28
  • Gas Block Diameter .936
  • Gas Tube Length - 16 inch Carbine, 18 inch, 20 inch, and 24 inch are Rifle
  • 1-9 RH Barrel Twist
  • 6 Lands and Groves
  • M4 Feed Ramp
  • Button Broached

Package Contents:

  • Luth-AR .223 Complete Upper Receiver Assembly

Luth-AR .223 Complete Upper Receiver Assembly Orderable Models

List of Orderable Models

  • Luth-AR Complete Upper Receiver Assembly, .223, 31in, 24in, Bull, Rifle, 1x9, 1/2x28, Picatinny, Key MOD, A2 Flash Hider, Anodized, Manganese Phosphate, Silver/ Black, FTBL-B24 , MPN: FTBL-B24 , UPC: 812058030164 , Code: 3FN-UFH-AR1516FBB-FTBL-B24
  • Luth-AR Complete Upper Receiver Assembly, .223, 26in, 16in, Bull, Carbine, 1x9, 1/2x28, Picatinny, Key MOD, A2 Flash Hider, Anodized, Manganese Phosphate, Silver/ Black, FTBL-B16 , MPN: FTBL-B16 , UPC: 812058030133 , Code: 3FN-UFH-AR1516FBB-FTBL-B16
  • Luth-AR Complete Upper Receiver Assembly, .223, 27in, 18in, Bull, Rifle, 1x9, 1/2x28, Picatinny, Key MOD, A2 Flash Hider, Anodized, Manganese Phosphate, Silver/ Black, FTBL-B18 , MPN: FTBL-B18 , UPC: 812058030140 , Code: 3FN-UFH-AR1516FBB-FTBL-B18
  • Luth-AR Complete Upper Receiver Assembly, .223, 29in, 20in, Bull, Rifle, 1x9, 1/2x28, Picatinny, Key MOD, A2 Flash Hider, Anodized, Manganese Phosphate, Silver/ Black, FTBL-B20 , MPN: FTBL-B20 , UPC: 812058030157 , Code: 3FN-UFH-AR1516FBB-FTBL-B20
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