Lead & Steel Llc LS556GOV-MID-13.9 5.56mm 13.90" Government Profile Features M4 Feed RampsLead & Steel Llc$103.64
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Lead & Steel Llc
A 5.56mm barrel for AR-platform builds that prioritizes weight savings without sacrificing reliability. The Lead & Steel LS556PEN-MID-13.9 is a pencil-profile barrel—thinner wall construction throughout—making it an excellent choice for shooters building lightweight carbines, recce rifles, or general-purpose uppers where every ounce counts. The 13.9-inch length puts you in midlength gas system territory, balancing velocity and manageability for duty, hunting, and tactical carbines. M4 feed ramps ensure smooth chambering and feeding across standard 5.56 NATO ammunition and magazines.
Pencil barrels are popular in modern AR builds because they reduce overall weight and improve handling without requiring exotic materials or precision machining. They perform well for mid-range accuracy and are forgiving enough for defensive, hunting, and 3-gun use. The tradeoff is less thermal mass than a thicker profile—they heat up faster under sustained fire—but for most hunting and tactical applications, that's a minor consideration. If you're building a light, packable upper or replacing a worn barrel on an existing rifle, this is a straightforward, proven option.
Lead & Steel barrels are made to spec and finished to run. Pair this with your favorite bolt carrier, gas tube, and handguard to round out your upper assembly. Whether you're a precision-focused hand-loader or running bulk 55-grain ball ammo from the range, M4 feed ramps keep things cycling reliably.
| Caliber | 5.56mm NATO |
| Barrel Length | 13.9 inches |
| Profile | Pencil |
| Feed Ramps | M4 |
| Platform | AR-15 |
This barrel is designed for standard AR-15 upper receivers with .625-inch diameter threads and M4 feed ramp compatible receivers. Confirm your upper's feed ramp configuration before purchase.
Yes. The 13.9-inch midlength configuration provides adequate velocity for hunting with 5.56 ammunition and handles well in the field. Pencil profile barrels are lighter for carry and maneuver, making them popular in hunting carbines.
A 13.9-inch barrel typically pairs with a midlength gas system, which balances reliability and recoil impulse. Consult your builder or manufacturer guidelines for your specific parts combination.
Pencil barrels are accurate for most hunting and tactical ranges. They heat up faster than thicker profiles under sustained fire, which can affect zero shift over long strings of fire, but they're reliable and proven in field use.
Lead & Steel Llc
A 5.56mm barrel for AR-platform builds that prioritizes weight savings without sacrificing reliability. The Lead & Steel LS556PEN-MID-13.9 is a pencil-profile barrel—thinner wall construction throughout—making it an excellent choice for shooters building lightweight carbines, recce rifles, or general-purpose uppers where every ounce counts. The 13.9-inch length puts you in midlength gas system territory, balancing velocity and manageability for duty, hunting, and tactical carbines. M4 feed ramps ensure smooth chambering and feeding across standard 5.56 NATO ammunition and magazines.
Pencil barrels are popular in modern AR builds because they reduce overall weight and improve handling without requiring exotic materials or precision machining. They perform well for mid-range accuracy and are forgiving enough for defensive, hunting, and 3-gun use. The tradeoff is less thermal mass than a thicker profile—they heat up faster under sustained fire—but for most hunting and tactical applications, that's a minor consideration. If you're building a light, packable upper or replacing a worn barrel on an existing rifle, this is a straightforward, proven option.
Lead & Steel barrels are made to spec and finished to run. Pair this with your favorite bolt carrier, gas tube, and handguard to round out your upper assembly. Whether you're a precision-focused hand-loader or running bulk 55-grain ball ammo from the range, M4 feed ramps keep things cycling reliably.
| Caliber | 5.56mm NATO |
| Barrel Length | 13.9 inches |
| Profile | Pencil |
| Feed Ramps | M4 |
| Platform | AR-15 |
This barrel is designed for standard AR-15 upper receivers with .625-inch diameter threads and M4 feed ramp compatible receivers. Confirm your upper's feed ramp configuration before purchase.
Yes. The 13.9-inch midlength configuration provides adequate velocity for hunting with 5.56 ammunition and handles well in the field. Pencil profile barrels are lighter for carry and maneuver, making them popular in hunting carbines.
A 13.9-inch barrel typically pairs with a midlength gas system, which balances reliability and recoil impulse. Consult your builder or manufacturer guidelines for your specific parts combination.
Pencil barrels are accurate for most hunting and tactical ranges. They heat up faster than thicker profiles under sustained fire, which can affect zero shift over long strings of fire, but they're reliable and proven in field use.