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Questions & Answers
Is this a hammer forged barrel? What is the gas length? 1/2x28 threads? I'm not seeing a product description... Manufacturer Answer

The 11.5 barrel will be a 4150 non chrome lined or hammer forged barrel. The gas system is a carbine length gas system with 1/2x28 thread pitch on the end for flash hiders or compensators.

by Luth-AR, Manufacturer, January 5, 2026
Color:
Black
Finish:
Phosphate
Caliber:
5.56x45mm NATO
Barrel Length:
11.5 in
Barrel Profile:
Government
Gas System Length:
Carbine Length
Gas Block Journal Size-Diameter:
.750 in
Barrel Twist Rate:
1-7
Barrel Material:
4150 CMV Steel
Gun Make:
AR Platform
Gun Model:
AR-15
Gun Type:
Rifle
Firearms Threads Per Inch:
1/2x28

Code: 3FN-ATB-SJNS46-BL-11-7

MPN: BL-11-7

UPC: 812058031895

List: $158.55Save 10%
$141.99

Product Info for Luth-AR AR-15 5.56x45mm NATO Threaded AR Barrel

4150 Chrome Molly Vanadium 5.56 mm, button broached barrel. The barrel is threaded with a 1/2x28 thread pitch, a 1-7 RH twist rate with 6 lands and grooves and an M4 feed ramp. This barrel takes a .750 gas block.image

Specifications for Luth-AR AR-15 5.56x45mm NATO Threaded AR Barrel:

Manufacturer: Luth-AR
Color: Black
Finish: Phosphate
Fabric/Material: 4150 CMV Steel
Caliber: 5.56x45mm NATO
Barrel Length: 11.5 in
Barrel Profile: Government
Gas System Length: Carbine Length
Gas Block Journal Size-Diameter: .750 in
Barrel Twist Rate: 1-7
Barrel Material: 4150 CMV Steel
Gun Make: AR Platform
Gun Model: AR-15
Gun Type: Rifle
Firearms Threads Per Inch: 1/2x28

Package Contents:

  • Luth-AR AR-15 5.56x45mm NATO Threaded AR Barrel

Luth-AR AR-15 5.56x45mm NATO Threaded AR Barrel Orderable Models

List of Orderable Models

  • Luth-AR AR-15 5.56x45mm NATO Threaded AR Barrel, 11.5in, Government, Carbine Length, 1-7 Twist, 1/2x28, Phosphate, Black, BL-11-7 , MPN: BL-11-7 , UPC: 812058031895 , Code: 3FN-ATB-SJNS46-BL-11-7
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