The Chesty is Mustang Armament's core duty line. Billet 7075-T6 receivers, a cold hammer forged 41V50 barrel, a Geissele SD-3G trigger, and Radian ambi controls, with barrel length, gas system, and recoil system matched as one suppressor-ready package. Built to order in your choice of barrel length and finish.
Specifications
- Manufacturer: Mustang Armament, Fredericksburg, Virginia
- Model: Chesty 5.56
- Caliber: .223 Wylde (5.56 NATO compatible), 1:7 twist, 1/2x28 thread
- Barrel Length: 8" (pistol gas), 10.3" (carbine gas), 11.5" (carbine gas), or 12.5" (midlength)
- Receivers: Mustang 7075-T6 billet upper and lower
- Barrel: Mustang Duty Precision Taper, cold hammer forged 41V50, nitride, nickel boron barrel extension
- BCG: DLC-coated 4140PH, enhanced anti-tilt, HPT/MPI tested, shot-peened
- Trigger: Geissele Super Dynamic 3-Gun
- Controls: Radian Raptor LT ambi charging handle, Radian Talon ambi safety, Radian bolt catch, Battle Arms takedown pins and mag release
- Grip: Driven Arms Full Size
- Foregrip: Emissary Development Accelerator, Emissary rail panels and covers
- Recoil System: JP Enterprises Silent Captured Spring, JP-SPEC seven-position receiver extension
- End Plate: PWS ratcheting castle nut and end plate with QD sling point
- Muzzle Device: Rearden R2S (Plan B compatible)
- Finish: Camo (Black, Bronze, Tungsten, OD Green), Tiger Stripe (Black, Bronze, Tungsten, OD Green), Damascus (Black, Bronze, Tungsten), Distressed (Bronze, FDE, Grey), or Battleworn (Bronze, FDE, Grey)
Price shown is for Camo, Tiger Stripe, and Damascus finishes. Distressed Cerakote adds $140 and Battleworn Cerakote adds $210.
- Firearm Type:
- Rifle
- Product Type:
- Rifle
- Platform:
- AR-15
- Caliber:
- .223/5.56
- Model:
- Chesty
- Action:
- Semi-Auto
This is a firearm. Federal law requires us to ship it to a licensed FFL dealer near you — not directly to your home address. Here's how it works:
- Add to cart and check out. At checkout, use our FFL dealer locator to pick a licensed dealer near you. If your preferred dealer isn't listed, check the box to enter their address manually.
- We verify the FFL and ship. Your dealer can email a copy of their license to support@reactivegunworks.com to speed things up.
- Pick up at your dealer. They'll contact you when it arrives. Bring your ID, fill out the ATF Form 4473, pass the background check/any other requirements relevant to where you live, and the firearm is yours.
Local to Fruitland, Idaho? Select in-store pickup at Reactive and schedule an appointment to visit us.
