Expo Arms Combat Series 5.56 Chrome Lined AR-15 Barrel Government Profile Mid-Length - 14.5" - $69.99

Description

The National Firearms Act regulates the configurations of some firearms assembled with barrels under 16” long. Know the NFA laws in your state before purchasing this item.
The Expo Arms Combat Series AR-15 Barrels are designed to give you a premium barrel at an affordable cost. This AR barrel is made from Mil-Spec 11595E certified 4150 steel and features a chrome lined bore to withstand high temperatures for a long barrel life. This 16” model features a government contour with a mid-length gas system and .077” port diameter for reliable function. Additionally, the .750 gas seat diameter is dimpled for securely attaching set screw gas blocks. The 1:7 twist rate is optimal for heavier 62 grain ammunition and the muzzle is threaded 1/2x28 for your favorite 5.56 muzzle device. The entire 5.56 Barrel is Phosphate coated for corrosion resistance and oil absorption. If you are looking for a combat ready barrel that provides exceptional accuracy and reliability, you can’t go wrong with an Expo Arms M4 barrel.
Features:
- 14.5” Government profile chambered in 5.56 NATO
- Mid-Length gas system with .077” port diameter
- .750” dimpled gas block shelf
- Made from Mil-Spec 11595E 4150 steel
- Chrome lined bore with Phosphate outer finish
- 1:7 twist rate and 1/2x28 muzzle thread
- M4 feed ramps
Expo Arms offers top-quality MIL-SPEC AR-15 components at rock bottom prices. Made in the U.S.A. and covered by Expo’s Limited Lifetime Warranty against manufacturer defects, material or workmanship problems, and even normal wear and tear.
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Specifications
Barrel Coating: Manganese Phosphate
Barrel Contour: Government
Barrel Length: 14.5
Barrel Lining: Chrome
Barrel Material: 4150 Chrome Moly Steel
Brand: Expo Arms
Feed Ramps: M4
Gas Seat Diameter: .750 in
Gas System Length: Mid-Length
Platform: AR-15
Thread Pattern: 1/2 X 28
Twist Rate: 1:7
MPN#: XP-B-556-145-GOV-C