Mk12 Spr 18'''' 5.56mm Nato Upper Receiver Black - Mk12 Spr 18'''' 5.56mm Nato 1-7 12'''' Ddm4 Rail Upper

Name: Mk12 Spr 18'''' 5.56mm Nato Upper Receiver Black - Mk12 Spr 18'''' 5.56mm Nato 1-7 12'''' Ddm4 Rail Upper
Brand: Brownells
Price: 1681 USD
Availability: InStock

Sold byBrownells•Posted Apr 28, 2026

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Deal Summary

Currently in stock.
Caliber: 223/5.56
Category: parts
UPC: 815604016735
SKU: 100024477
Brand: Daniel Defense

Price History

Deal Details

The MK12 Upper Receiver from Daniel Defense is built around an 18" stainless steel barrel, engineered with a rifle-length direct impingement gas system and utilizing the MK12 gas block, which is built to Crane Specifications for USSOCOM. The Daniel Defense MK12 Upper Receiver features a rugged hard coat anodized Mil-Spec aluminum upper with a hammer forged stainless steel 18" barrel in a 1-7 twist with a MK12 profile. MK12 low profile gas block machined from 416 hardened steel, rifle length