10.5″ Bloodline URG (Complete)

From: $689.95

The Rosco completed URGs feature every single aftermarket item we sell as standard equipment in a ready to roll combo. From our highly coveted in-house made barrels, Purebred billet uppers, Purebred MLok handguards, to our Bloodline accessories. You’ll even have the option to upgrade your URG with a Rosco/Radian Raptor ambi-charging handle and a Surefire Warcomp to design one un-stoppable package. Don’t pew like a POOR, live like a king without having to spend like one! (If choosing a Warcomp make sure to specify Open-Tine or Closed-Tine in the notes section of the cart).

Current lead time is 4 weeks as this is a new product. 

5.56 / 300 BLK Bolt Carrier Group

Out of stock

Rosco “Raptor” Charging Handle

Out of stock

Out of stock

The Rosco Bloodline 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, and lapped surfaces 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.



Barrel Length 10.5” Bloodline (4150 CMV, Melonite)
Caliber 5.56x45mm

1/7 RH

Gas System


Gas Block

Bloodline, non-adjustable, .750 dia, 4140 steel (Non-Adjustable)
Gas Tube

Bloodline, carbine length, stainless steel (Melonite)

Bolt Carrier Group

Bloodline, 8620 carrier, 9310 bolt, full auto rated, HP/MPI tested

Upper Receiver

Purebred, billet (7075 T6, T3 anodize)


Purebred, 9” MLok (6061 T6, T3 anodize)

Charging Handle

Standard (Mil-SPEC), or Rosco/Radian “Raptor” charging handle (Black or FDE)

Muzzle Device

A2 flash hider (Mil-Spec), or Surefire Warcomp (Open Tine or Closed Tine)


Additional information

Weight 3 lbs
Dimensions 10.5 × 2.5 × 3.0 in
Choose Configuration

(Mil-Spec) A2 F/H & Std Handle, (Upgraded) Surefire Warcomp & Radian Handle (Black), (Upgraded) Surefire Warcomp & Radian Handle (OD Green)

5.56 / 300 BLK Bolt Carrier Group

Weight 0.7875 lbs
Dimensions 1.25 × 1.25 × 8 in

Rosco “Raptor” Charging Handle

Weight .5 lbs
Dimensions 15 × 2.5 × 3 in
Choose a Color

Black, FDE


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