Expo Arms Combat Series 5.56 Chrome Lined AR-15 Barrel Government Profile Mid-Length - 14.5"
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.
- 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.
Ratings & Reviews
Expo Arms Combat Series 5.56 Chrome Lined AR-15 Barrel Government Profile Mid-Length - 14.5
Just got mine in the mail today. The barrel looks flawless and fits the upper I have nice and tight. Very pleased with how it looks. Haven't matched the upper to a lower so I can't comment on accuracy yet.
EXPO ARMS COMBAT SERIES
by charles c -
great barrel nice chrome lining outside finish was flawless great packaging
<br>haven't shoot it for accuracy yet but will be buying more of these for future builds
by Clay -
Top quality, fast shipping and accurate, 1moa groups at 150 yards.
Expo Arms 14.5” Barrel
by Mac -
EXPO ARMS 14.5” 556 chrome lined barrel is the best affordable barrel on the market today. Primary Arms has what I need every time I shop! 🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸
by Vincent -
The barrel seems to be great quality, just recently fired rounds through it, seems to be accurate. Like the chrome line, the quality looks really great. Expo arms did a good job on the machining of it. Seems like it will last