
Craddock Precision has launched the RTR After Dark 6ARC 18″ Reaper Mk12 barrel, designed for suppressed shooting and durability. Made from nitrided 4150 CMV steel, it features a precision button rifled finish, enhanced feed ramps, and compatibility with various suppressors. The barrel is lightweight, measuring 46 oz with a 1:7 twist rate.
Craddock Precision states “This 18” 6mm ARC precision barrel is part of our RTR (Ready to Rock) lineup and built within the After Dark Series — our nitrided 4150 Chrome Moly Vanadium (CMV) line designed for hard use, suppressed shooting, and real-world application.
Precision button rifled from match-grade 4150 CMV steel, each barrel is bead blasted and salt bath nitrided for enhanced durability, corrosion resistance, and a deep black, low-glare finish. The Reaper contour follows a constant taper from breech to muzzle, inspired by the M110 profile, while integrating a Type A mount to properly host the AEM5 or AEM5k. It will also run the OCM5 and OCM6. Because around here, the AEM5 gets the love it deserves. Blacked out. Suppressor-ready. Built for the night shift.
KEY DETAILS:
- Length: 18″
- Chamber: 6mm ARC
- Gas System: Rifle Length (Gas Tube Included)
- Twist: 1:7
- Weight: 46 oz
- Profile: Mk12 Mod 1 / .750 Gas Block Journal / Reaper Contour
- Feed Ramps: Enhanced / Enlarged
- Blank: Match Grade Button Rifled Stainless
- – Finish: Nitride (After Dark Series)
- Threads: 5/8×24
- Crown: 11° Target Crown
- Suppressor Compatibility: AEM5, AEM5k, OCM5, OCM6, Any Type A
-The muzzle is threaded 5/8×24 and will also accept any compatible direct-thread suppressor for 6mm Caliber
Learn more about Craddock Precision: https://craddockprecision.com/
