The upper receiver is mil-spec with indexing marks and M4 feed ramps. CNC Machined of 7075-T6 aluminum, type III hard coat anodized, color is black. The barrel is chrome-moly vanadium steel, cold hammer forged in a 1:7 twist, 10.3" government profile, chrome lined.

The Daniel Defense MK18 Upper Receiver Group features the railed forend Daniel Defense currently provides to USSOCOM and a 10.3” Cold Hammer Forged Barrel. The MK18 Rail Interface System (RIS II) features the Bolt-Up System …

Brownells has paired up the Daniel Defense MK18 Stripped SOCOM Upper Receiver with your choice of EOTech Red Dot EXPS2-0 or EXPS3-0. Daniel Defense manufactures the highest quality complete AR-15 upper receivers on the market today!

It features a 9.5 inch lightweight RIS III rail—modeled after the revolutionary RIS II two-piece handguard developed for SOCOM— which features M-LOK attachment for lighter weight. UPPER RECEIVER: Mil-Spec with Indexing Marks and M4 Feed Ramps.

mk18 10.3" stripped socom upper receiver w/ law folder Brownells has paired the Daniel Defense Stripped M4A1 Upper Receiver with the ever-popular LAW Tactical Folding Stock Adapter! Daniel Defense manufactures the highest quality complete AR-15 upper receivers on the market today!

Brownells has paired up the Daniel Defense MK18 Stripped SOCOM Upper Receiver with your choice of EOTech Red Dot EXPS2-0 or EXPS3-0. Daniel Defense manufactures the highest quality complete AR-15 upper receivers on the market today!

The Daniel Defense MK18 build is a compact and highly versatile setup designed for tactical and close-quarters applications. Combining premium components for reliability, accuracy, and adaptability, this build excels in performance and functionality.

Browse DANIEL DEFENSE Upper Receivers products with 4.8 Ratings out of 136 Reviews from verified buyers at Brownells.

The Daniel Defense MK18 SOCOM Upper Receiver, with a B5 Buttstock, and an Eotech EXPS3 Holographic Sight. Daniel Defense manufactures the highest quality AR-15 upper receivers on the market today! Every Daniel Defense upper is painstakingly hand assembled, quality assurance tested, and test fired to ensure that the highest quality product makes ...

The MK18 Mod 1, renowned as the ultimate close-quarters AR15 upper receiver, prominently features the Daniel Defense MK18 upper in this build. With components such as the B5 SOPMOD stock, BCM MK2 RMS, and a LAW Folding Stock Adapter, this AR platform delivers a compact and agile design.