CMMG A0B Mk4 5.56mm Rifle w/ Zeroed 556k Suppressor & 2 MOA Vortex Sparc - $1299.99

Description

SKU: 55AC79E-AB

The CMMG A0B Mk4 AR-15 rifle, now enhanced with the CMMG Zeroed 556K suppressor and Vortex Optics SPARC AR 2 MOA red dot sight, forms an outstanding suppressed optics-ready package tailored for 5.56mm NATO/.223 Remington versatility. The rifle's 16.1-inch 4140CM SBN barrel with 1:7 twist and rifle-length direct impingement system pairs perfectly with the compact Zeroed 556K suppressor—replacing the included Zeroed muzzle brake (which remains provided)—to deliver substantial noise reduction, minimal muzzle flash, and improved control for faster, more accurate follow-up shots. The premium TriggerTech AR-D 2-stage trigger ensures crisp performance, while the M-LOK handguard offers flexible mounting options, and the Armor Black Cerakote finish with B5 Systems stock provides rugged durability and ergonomic comfort in a lightweight 6.5-pound, 41-inch platform.

The Zeroed 556K suppressor adds just 5.5 inches (5.2 inches without mount) and 13.5 ounces (11 ounces without mount) with its heat-treated 17-4 stainless steel construction, nitride finish, and tubeless laser-welded baffles for excellent sound suppression on 5.56mm and compatible calibers. Full-auto rated, user-serviceable, and HUB-compatible with included 1/2x28 and 5/8x24 direct thread mounts, it maintains the rifle's balance for dynamic handling in training, home defense, or tactical use. Topped with the Vortex SPARC AR 2 MOA red dot, this bundle gains rapid target acquisition through its parallax-free 2 MOA bright red dot, unlimited eye relief, and multi-height mount compatible with AR platforms.

The Vortex SPARC AR features 10 daylight-bright brightness settings (including night-vision compatible low levels), a 50,000-hour AAA battery life with 12-hour auto-shutoff, fully multi-coated lenses for clear sight picture, and rugged, shockproof/fogproof/waterproof construction in a compact 2.9-inch, 7.5-ounce body with 90 MOA windage/elevation adjustments. This complete setup combines CMMG's in-house quality manufacturing with Vortex's legendary reliability and lifetime VIP warranty, delivering a suppressed, red-dot-equipped AR-15 that's ready for any scenario requiring speed, reduced signature, and precision.

Build your ultimate suppressed red-dot AR-15 bundle with the CMMG A0B Mk4 rifle, Zeroed 556K suppressor, and Vortex SPARC AR sight—shop now at Battlehawk Armory!

Rifle Specifications:

Caliber: 5.56mm
Operating System: Direct Impingment
Barrel Length: 16.1"
Barrel Twist: 1:7"
Barrel Material: 4140CM, SBN
Muzzle Device: CMMG Zeroed Muzzle Brake
Muzzle Thread: 1/2"x28
Gas Port Location: Rifle
Gas Block: Adjustable 0.750"
Handguard: M-Lok
Finish: Armor Black Cerakote
Stock: B5 Systems Stock
Trigger Type: TriggerTech AR-D 2-Stage
Safety Selector: CMMG Zeroed 60/90 Degree
Magazine: CMMG 30rd
Weight: 6.5 lbs
Length: 41"
Suppressor Specifications: CMMG Zeroed 556k

Caliber: 5.56mm, 22 ARC, 5.7x28mm, 4.6x30mm
Finish: Nitride
Weight:
13.5 oz w/ Mount
11 oz w/o mount
Diameter: 1.58"
Length:
5.5"
5.2" w/o Mount
HUB Compatible: Yes
Material: Heat Treated 17-4 Stainless Steel
Minimum Barrel Length:
5.7x28mm - 5"
5.56mm - 10.5"
Mount: 1- 1/2"x28 TPI & 1- 5/8"x24 TPI HUB Mounts
Full Auto Rated: Yes
Bore Diameter: .224 Caliber
Red Dot Specifications: Vortex Optics Sparc AR 2 MOA Red Dot

Magnification: 1x
Objective Lens Diameter: 22mm
Reticle: 2 MOA Dot
Adjustment Graduation: 1 MOA
Parallax Setting: Parallax Free
Max Windage Adjustment: 90 MOA
Max Elevation Adjustment: 90 MOA
Dot Color: Bright Red
Dot Size: 2 MOA
Mount Type: Multi-Height
Eye Relief: Unlimited
Length: 2.9"
Weight: 7.5 oz