Product Details
The Luth-AR M4 Government Profile upper is a complete A3 flat-top upper for an AR-15, built on a 14.50" M4 Government profile barrel in 5.56 NATO. The barrel is made from 4150 steel with a 1:7 twist that stabilizes a wide range of bullet weights, and it runs a carbine-length gas system.
An F-marked front sight base and a two-piece CAR-style handguard give the upper a classic M4 look, and the manganese phosphate finish is black. On a rifle lower, a 14.50" barrel needs a permanently attached muzzle device to reach 16.00", or the rifle must be registered as a short barrel rifle.
- Brand: Luth-AR
- Model: M4 Government Profile
- Caliber: 5.56 NATO
- Barrel Length: 14.50", 4150 Steel, 1:7 Twist
- Gas System: Carbine Length
- Front Sight: F-Marked FSB
- Finish: Manganese Phosphate, Black
Specifications
| __Barrel Length | 14.50" |
| __Caliber | 5.56 NATO |
| __Model | M4 Government Profile |
| __Twist Rate | 1:7 |
| __Firearm Compatibility | AR-15 |
