The Rosco K9 URGs are a culmination of the performance and synchronization of our barrels and accessories. Our original goal was to supply folks with well-made barrels to improve their current platforms. After we reached that marker, we then sought out the best accessories and tuned them to work perfectly with our barrels in a cohesive system. Ultimately, we decided to bring our talents as shooters and gunsmiths to provide non-builders with a product that was a drop-in option.
Our URGs have every bit of our DNA in them- from the years of turning barrels (OEM & Commercial), to the hand-picked support components, and the many hours of working over a bench. All the details that are often disregarded by other manufacturers are the starting points to these upper receiver groups. Headspace, correct torques, gas port/gas block alignment are the bricks that create a path to cornerstone performance. Those items are not just a hit-list of tasks for these URGs, it’s a roadmap we will never compromise on.
ALL NFA RULES APPLY!
Specifications:
Barrel Length | 12.5” K9 Sage Dynamics (416R, Melonite) | |
Caliber | 5.56x45mm | |
Twist |
1/7 RH |
|
Gas System |
Patrol Length | |
Gas Block |
Bloodline, Non-adjustable, .750 dia, 4150 Steel (Melonite) | |
Gas Tube |
K9, Patrol Length, stainless steel (Melonite) |
|
Upper Receiver |
Purebred, billet (7075 T6, T3 anodize) |
|
Handguard |
Purebred, 10.75” MLok (6061 T6, T3 Anodize) |
|
Muzzle Device |
SOLGW Nox9 Neutral |
Nick (verified owner) –
This is a solid upper, built above its price point. I’ve run it through the ringer and it holds zero and functions reliably. I most certainly will be getting more.
Chelsen Kincade-Jackson (verified owner) –
Very solid upper receiver! The barrel is very accurate and the BCG is a breeze to clean. I can’t wait to push it out to longer distances! Paired it with a Geissele braided spring and an H3 buffer and it shoots incredibly soft. I’ll be buying all of my barrels from Rosco from her on.