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Cobalt Kinetics builds guns in St. George, Utah with a level of machining detail that most production shops just don't bother with, and the CK-Pro Lite is where that attention meets a practical, grab-and-go 5.56 platform. This 11.5 inch version starts with billet 7075 T6 aluminum upper and lower receivers, with the trigger guard machined right into the lower, then adds a 6061 semi-monolithic handguard with M-LOK slots on seven sides. The barrel is 4150 CMV steel with a melonite finish and a 1:7 right-hand twist, which stabilizes everything from light varmint loads up through 77 grain match bullets.
Plenty of short 5.56 builds look good on paper, but Cobalt sweats the running gear. The bolt carrier group uses an 8620 carrier, a Carpenter 158 bolt, and a billet extractor, the same recipe you'd want in a hard-use gun. The A5-length CK buffer system with an anti-tilt buffer smooths out the cycle, and the enhanced single-stage trigger breaks cleaner than what you'll find in most factory carbines. Controls are set up for either hand, with an ambidextrous safety and ambidextrous charging handle, plus a QD end plate for quick sling attachment.
The included RCB-6 muzzle device doubles as a quick-detach mount compatible with Cobalt's own CK Scrambler cans as well as CGS and SpectreCat pattern suppressors. If you're planning to run this one quiet, and an 11.5 inch 5.56 practically begs for it, you won't need to swap hardware. The barrel is threaded 1/2×28 and the gas block is a fixed .750 diameter unit, so the setup stays simple and reliable.
With an SB Tactical SBA3 brace and a 30 round magazine included, this configuration handles tight spaces and truck duty without giving up much velocity compared to a full-length carbine. It ships without sights, so plan on adding your favorite optic to the full-length top rail. For anyone who wants a compact 5.56 that's built like a custom shop gun, this one earns its keep.
No, it ships without iron sights. The full-length top rail gives you plenty of real estate for a red dot, LPVO, or backup irons. Most buyers pair a short 11.5 inch gun like this with a red dot and optional magnifier.
Yes. The included RCB-6 muzzle device serves as a quick-detach mount for Cobalt's CK Scrambler suppressors and is also compatible with CGS and SpectreCat pattern cans. The barrel itself is threaded 1/2×28 if you'd rather run a direct-thread setup.
A 1:7 twist stabilizes a wide range of bullet weights, from 55 grain plinking loads up to 77 grain match ammo. Heavier 69 to 77 grain bullets tend to shine out of this twist rate, especially from a shorter barrel. It handles both .223 Remington and 5.56 NATO pressure loads.
It runs Cobalt's A5-length CK buffer system with an anti-tilt buffer, which delivers a smoother, softer cycle than a standard carbine buffer. That's a big part of why this gun shoots flatter than most short 5.56 builds. It also uses a full-auto rated BCG with an 8620 carrier and C158 bolt for long-term durability.
| UPC | 850060560262 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | CKPROLITE556115BLK |
| Action | |
| Barrel Length | 11.5" |
| Caliber/Gauge | .223 REM/5.56 NATO |
| Capacity | 30 + 1 |
| Safety | Ambidextrous Safety Lever |
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