Daniel Defense MK12 Upper Receiver Group 5.56mm NATO 18 Inch MK12 Profile Barrel With Salt Bath Nitride Finish

Name: Daniel Defense MK12 Upper Receiver Group 5.56mm NATO 18 Inch MK12 Profile Barrel With Salt Bath Nitride Finish
Brand: Optics Planet
Price: 1681 USD
Availability: InStock

Sold byOptics Planet•Posted Apr 27, 2026

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Deal Summary

Currently in stock.
Caliber: 223/5.56
Category: parts
UPC: 815604016735
SKU: DDD-UFH-23-142-10035
Brand: Daniel Defense

Price History

Deal Details

Daniel Defense MK12 Upper Receiver Group 5.56mm NATO 18 Inch MK12 Profile Barrel With Salt Bath Nitride Finish. This along with being DLC finished equates to unprecedented accuracy and durability. The MK12 barrel is engineered with a rifle-length direct impingement gas system and utilizes the MK12 gas block which is built to Crane Specifications for USSOCOM. The MK12 gas block is precision CNC machined from 416 stainless steel and Black Oxide Coated. The new independently ambi GRIP-N-RIP Chargin