Cobalt Kinetics CKPRO SPR .223 Wylde AR-15 Rifle, 18 in Proof Research Barrel, Matte Gray, Ambi Controls
This Cobalt Kinetics CKPRO SPR stands out with premium components and a clean, modern build. It features billet matched receivers, a Proof Research 18 inch stainless barrel with a multi-port muzzle brake, and a TriggerTech Diamond single-stage adjustable trigger. The rifle is configured with a long free-float M-LOK handguard, ambidextrous controls, and B5 Systems furniture, all in a matte gray finish. It is in excellent condition.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There is little sign of prior use. The firearm is in excellent condition and functions properly.
What’s Included
- Cobalt Kinetics CKPRO SPR semi-automatic rifle, .223 Wylde
- 1x 30-round Magpul PMAG polymer AR-15 pattern magazine
- TriggerTech Diamond single-stage adjustable trigger with straight shoe (installed)
- 18 in Proof Research stainless steel barrel (installed)
Built on billet matched aluminum receivers, this CKPRO SPR uses a slick-side upper with no forward assist, plus a shell deflector and dust cover. The matte gray finish is uniform across the upper and lower, and the receiver is marked "MDL. CKPRO" and "CAL. Multi." It is made in the USA and runs a direct-impingement AR-15 operating system.
The rifle is chambered in .223 Wylde and fitted with an 18 inch Proof Research stainless steel barrel. The barrel is threaded and capped with a multi-port muzzle brake. A long free-float aluminum handguard provides M-LOK slots at 3, 6, and 9 o'clock and a full-length Picatinny rail along the top.
Controls are well-sorted, with a Radian Raptor-LT ambidextrous charging handle and a left-side ambidextrous magazine-release lever alongside the standard left-side bolt catch. The rifle uses a VLTOR A5-pattern receiver extension. Furniture includes a B5 Systems Bravo adjustable stock with QD sling socket and a B5 Systems pistol grip.
Fire control is upgraded with a TriggerTech Diamond single-stage adjustable trigger with a straight shoe. Capacity is 30+1, and the rifle includes one 30-round Magpul PMAG magazine.