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AR-15 556 DUTY 16
Sale!
Original price was: $1,299.00.$1,149.00Current price is: $1,149.00.
Description
DO NOT SELECT THE CHARGING HANDLE UPGRADE ABOVE ON THE DROP DOWN, IT IS ALREADY INCLUDED IN THIS MODEL
ACI-15 556 DUTY 16 Inch Rifle – Premium Components, Duty-Grade Reliability
The ACI-15 556 DUTY 16 is built for shooters who demand the highest level of performance and dependability from their AR15 platform. This rifle brings together some of the most trusted, high-performance components in the AR15 world, creating a platform that excels in accuracy, durability, and real-world usability. Whether you’re a discerning enthusiast, a professional end-user, or a competitive shooter, the ACI-15 556 DUTY 16 delivers the features and quality you demand—right out of the box.
Specifications
- Ballistic Advantage Hanson 16″ 4150 CMV Melonite Barrel w/ Nickel Boron Barrel Extension and a Pinned Nitride .750 Low Pro Gas Block
- 1/7 Twist
- Mid-Length Gas System
- M4 Feed Ramps
- QPQ Corrosion Resistant Finish
- M16 BCG Full Auto Rated HP/MPI
- Breek Arms Warhammer Ambi Charging Handle
- ACI Dual Port RRD Muzzle Brake
- 1/2×28 Threaded Muzzle
- Midwest Industries Combat 15″ MLOK Handguard
- 7075-T6 Forged Upper with T-Markings
- Forward Assist
- Ejection Port Assembly
- 7075 Mil-Spec AR-15 Forged Lower
- Type 3 Hard Coat Anodized
- Mil-Spec LPK w/ Enhanced Trigger Guard and B5 Systems P23 Pistol Grip
- Armaspec 45 degree short lever Ambi Selector
- B5 Systems Bravo Stock and 5 Position Carbine Buffer Tube Assembly (3.2 Ounce Buffer)
- 30 Round Magazine
- WEIGHT – 6 LBS 1 OZ
SKU: 55616DUTY
UPC: 615629735280
Premium Barrel Technology:
The Ballistic Advantage Hanson 16″ 4150 CMV Melonite Barrel on the ACI-15 556 DUTY 16 is renowned for its lightweight, shoulder-less profile that maintains rigidity and accuracy while reducing front-end weight. The Nickel Boron barrel extension ensures ultra-smooth cycling and extended wear resistance, while the pinned nitride .750 low profile gas block guarantees rock-solid gas system reliability. The QPQ corrosion resistant finish and 1/7 twist rate make this barrel ideal for a wide range of 5.56 NATO loads, offering both longevity and sub-MOA performance potential.
The Ballistic Advantage Hanson 16″ 4150 CMV Melonite Barrel on the ACI-15 556 DUTY 16 is renowned for its lightweight, shoulder-less profile that maintains rigidity and accuracy while reducing front-end weight. The Nickel Boron barrel extension ensures ultra-smooth cycling and extended wear resistance, while the pinned nitride .750 low profile gas block guarantees rock-solid gas system reliability. The QPQ corrosion resistant finish and 1/7 twist rate make this barrel ideal for a wide range of 5.56 NATO loads, offering both longevity and sub-MOA performance potential.
AR15/M16 Bolt Carrier Group – The Industry’s Best
The BCG is the heart of any AR15 or M16, and ours is engineered to be the most reliable, durable, and precise on the market. Precision-machined from 9310 alloy steel, every bolt is HP proof tested and 100% MPI inspected for flawless strength. The carrier is made from 8620 alloy, full-auto rated, hard chrome lined, and manganese phosphate finished for maximum durability.
Key features include a 4140 tool steel extractor with a 5-coil spring and Viton O-ring, S7 tool steel ejector, corrosion-resistant gas rings, and a robust 4130 chromoly gas key—torqued, sealed, staked, and breakaway tested to spec. The cam pin, firing pin, and all pins are heat treated and built to last. Laser-engraved HPT/MPI markings prove every unit meets the strictest standards.
All components and assembly are 100% made in the USA. If you want the most dependable, hard-use BCG on the market, this is it—no compromises.
Ambidextrous, Enhanced Controls:
The Breek Arms Warhammer Ambi Charging Handle on the ACI-15 556 DUTY 16 delivers effortless, one-handed manipulation from either side of the rifle. Its robust 7075-T6 aluminum construction, extended latches, and gas diversion cut make it a favorite among AR builders looking for high-value upgrades.
The Breek Arms Warhammer Ambi Charging Handle on the ACI-15 556 DUTY 16 delivers effortless, one-handed manipulation from either side of the rifle. Its robust 7075-T6 aluminum construction, extended latches, and gas diversion cut make it a favorite among AR builders looking for high-value upgrades.
Combat-Grade Free-Float Handguard:
The Midwest Industries Combat 15″ MLOK Handguard is a top choice for those seeking a lightweight, rigid, and modular mounting platform. Featuring a patented 4140 heat-treated torque plate, full-length Picatinny rail, multiple anti-rotation QD sling sockets, and seven sides of MLOK slots, this handguard delivers rock-solid accessory mounting and superior heat dissipation—while remaining slim and ergonomic.
The Midwest Industries Combat 15″ MLOK Handguard is a top choice for those seeking a lightweight, rigid, and modular mounting platform. Featuring a patented 4140 heat-treated torque plate, full-length Picatinny rail, multiple anti-rotation QD sling sockets, and seven sides of MLOK slots, this handguard delivers rock-solid accessory mounting and superior heat dissipation—while remaining slim and ergonomic.
Additional Duty-Ready Features:
- M16 full-auto rated bolt carrier group for maximum reliability under hard use
- ACI Dual Port RRD Muzzle Break for reduced recoil and faster follow-up shots
- B5 Systems Bravo Stock and P23 Pistol Grip for improved ergonomics and control
- Armaspec 45-degree ambi selector for rapid, intuitive safety manipulation
- Mil-spec lower parts kit with enhanced trigger guard for gloved use
- 7075-T6 forged upper and lower receivers, Type 3 hard coat anodized for maximum strength
- Magpul Gen 3 30-round magazine included
Every ACI-15 556 DUTY 16 is assembled and test-fired by skilled armorers, ensuring flawless function and accuracy from day one. Whether you’re running drills, defending your home, or competing at the highest level, the ACI-15 556 DUTY 16 is built to deliver.
ALL FIREARMS MUST BE SHIPPED TO A VALID FFL. PLEASE HAVE YOUR DEALER EMAIL FFL COPY TO ACIFFL@ANDROCORPIND.COM. CONTACT FOR QUESTIONS OR ASSISTANCE.
Important Compliance & Safety Information
ALL NFA RULES APPLY
It is the customer’s responsibility to be aware of all applicable laws and regulations regarding the purchase and ownership of uppers with a barrel length of less than 16″. Federal NFA regulations are applicable to this item.
It is the customer’s responsibility to be aware of all applicable laws and regulations regarding the purchase and ownership of uppers with a barrel length of less than 16″. Federal NFA regulations are applicable to this item.
Handling firearms or firearms parts can expose you to lead and other petroleum products known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, visit www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).
For more information, visit www.p65warnings.ca.gov (CA Health and Safety Code Section 25249.6).
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