Rosco Manufacturing

The K9 16" features an intermediate length gas system with an optimized gas port to run reliably suppressed and/or unsuppressed. The K9 continuous taper is the most effective profile to dissipate...

The K9 12.5 offers a proprietary patrol length gas system that is smoother than a carbine length, and more reliable than a mid-length. Because this is the optimal amount of gas, the barrel runs...

The Rosco Sauce Pack bundles were created after direct requests from Rosco's customers to provide them with the key components needed for their carbine/pistol builds at a great combined price. The...

The Rosco Sauce Pack bundles were created after direct requests from Rosco's customers to provide them with the key components needed for their carbine/pistol builds at a great combined price. The...

This Rosco 10.5" M4 5.56 NATO Bloodline Barrel is designed to be the perfect addition to any SBR or Pistol build. The Rosco 5.56 (NATO) barrels are designed to meet the modern day carbine shooters...

This Rosco 16" 300 Blackout (300 BLK) Barrel is perfectly suited for precision carbine shooters that plan on running only supersonic ammo, or are building a well-balanced hunting platform...

This Rosco 18" .223 Wylde Barrel was made to enhance the performance of the original SPR. The SPR contour is well suited for cold bore shots on target as well as keeping the weight at a great balance...

The Rosco Sauce Pack bundles were created after direct requests from Rosco's customers to provide them with the key components needed for their carbine/pistol builds at a great combined price. The...

The Bloodline 14.5" 9mm Barrel. This Rosco 14.5" 9mm Barrel is the perfect addition for shooters that compete in the USPSA's PCC division, or are searching for a barrel which will offer astounding...

This Rosco 16" 300 Blackout (300 BLK) barrel is perfectly suited for carbines shooters that plan on running only supersonic ammo, or are building a well-balanced hunting platform. Rosco 300 Blackout...

Bloodline 5.5" 9mm Barrel: This Rosco 5.5" 9mm Barrel was primarily designed for suppressed carbines/ pistols where the handguard will be ran over the rail. It will give you the flexibility of...

Bloodline 7.5" 9mm Barrel: This Rosco 7.5" 9mm Barrel was designed for Personal Defense Weapon (PDW) builds where the end user might run suppressed occasionally and have the need for extended...