$759.58
1 in stock
Online inventory may differ from in-store availability.
Quick turnaround so you get your gear sooner.
Trusted checkout with industry-standard protection.
Keeping Traditions Alive Since 1953
Secure Transactions provided with 
Cobalt Kinetics didn't just copy the standard AR-15 upper and slap a coat of paint on it. The CK-Pro URG reworks the barrel-to-receiver interface from the ground up, and this 15.5" stripped version gives you that engineering as a blank slate for your own 16" build. No BCG, no charging handle, no barrel in the box, just the receiver and handguard so you can drop in whatever internals fit your build plan and budget.
The upper itself is machined from a 7075-T6 billet blank with a proprietary reverse-threaded barrel nut, a departure from the traditional externally threaded receiver extension most AR uppers still use. That design puts more thread engagement between the barrel and receiver, which translates to a tighter, more consistent lockup at the point where most rifles eventually develop play. It's a small change that makes a real difference once you've put a few thousand rounds through it.
Paired with the upper is Cobalt's S.I.M.S. handguard, a 6061 aluminum M-LOK rail that mounts to the receiver with 8 TORX head screws instead of relying on a barrel nut for indexing. That means no handguard rotation and a rock-solid mounting surface for optics, lights, or grips. At 15.5" long, this rail is sized to run with a 16" barrel, giving you plenty of real estate to configure the front end however your setup calls for.
This particular URG comes in Cobalt Kinetics' CK Green Cerakote, a finish that's become something of a signature look for the brand and stands out from the usual black-and-FDE lineup without looking gimmicky. Because it's a stripped configuration, the upper will accept a standard mil-spec bolt carrier group and charging handle, along with a barrel in whatever caliber you're chambering for, so it drops right into an existing 5.56 or .300 BLK build without forcing you into proprietary parts.
No, this is a stripped configuration, so it ships without a BCG, charging handle, or barrel. You'll need to source those separately to finish the build, which lets you pick the exact internals you want rather than being locked into a factory combo.
This rail length pairs with a 16 inch barrel per Cobalt Kinetics' sizing chart. Running a different length barrel would leave you with either exposed threads or a rail that doesn't reach the muzzle device properly.
Yes, Cobalt Kinetics builds these uppers to interface with mil-spec TDP lowers, so it should drop onto most quality lower receivers without issue. It's still worth sourcing your lower from a reputable manufacturer to keep tolerances tight.
Since this URG is stripped and listed as multi-caliber, the chambering comes down to the barrel and bolt you install, not the upper itself. Plenty of builders run these with .300 BLK barrels using the same receiver and handguard.
| UPC | 850060560507 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | CK-PRO-URG-16-S-CKG |
You must be logged in to post a review.
Reviews
There are no reviews yet.