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The Lead & Steel 14.5" barrel is a workhorse build piece for anyone putting together an AR-15 that leans toward a classic M4-style carbine. It's turned from 4150 chrome moly vanadium steel, which is the same tough alloy you'll find on plenty of duty-grade and mil-spec barrels, and it's finished inside and out with a QPQ black nitride treatment. That nitride process hardens the surface, fights corrosion, and leaves a slick bore that's easy to clean after a long range day.
The Government profile is a proven contour that balances weight and heat resistance. It carries a little more meat under the handguard where the barrel takes the most abuse, so it holds up to sustained strings of fire without going noodle-thin at the muzzle. Chambered in 5.56 NATO, it happily runs both 5.56 and .223 Remington, and the 1:7 twist stabilizes heavier match and defensive loads just as well as it handles lighter plinking ammo.
At 14.5 inches, this barrel is paired with a mid-length gas system, which is a big part of why it shoots so smooth. The longer dwell time softens the recoil impulse and eases wear on the bolt carrier group compared to a carbine-length setup. The M4 feed ramps are cut and QPQ coated right into the barrel extension, giving rounds a clean path into the chamber for dependable feeding.
Standard specs make this an easy drop-in for most builds. The muzzle is threaded 1/2×28 for the vast majority of flash hiders, brakes, and suppressor mounts, and the .750" gas block journal takes common low-profile gas blocks. Whether you're assembling a lightweight range gun or a rugged general-purpose carbine, this barrel gives you a dependable foundation without breaking the bank.
It uses a mid-length gas system. The longer gas tube gives you a softer, smoother recoil impulse and reduces wear on your bolt carrier group compared to a carbine-length setup, which is a nice match for a 14.5" barrel.
The Lead & Steel barrel comes with a 1:7 twist, which is the same rate used on most modern mil-spec barrels. It stabilizes heavier match and defensive loads well while still shooting lighter bulk ammo just fine, so it's a versatile all-around choice for 5.56 and .223.
Yes. The muzzle is threaded 1/2×28, which fits the vast majority of AR-15 flash hiders, muzzle brakes, and suppressor adapters. The gas block journal measures .750", so common low-profile gas blocks slide right on.
QPQ nitride hardens the steel surface and adds strong corrosion resistance without building up material like chrome lining does, so it keeps the bore dimensionally consistent. It also leaves a slick surface that makes cleaning easier and helps the barrel hold up to heat and wear over the long haul.
| UPC | 7427053012379 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | LS556GOV-MID-14.5 |
| Length | 14.50" |
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