PRODUCT DETAILS; MK18 Upper
MK18 Upper , The Daniel Defense MK18 Complete AR-15 Pistol Upper Assembly is a faithful recreation of the US Navy’s Mk18 Mod 1 platform, and features a Premium 10.3″ Cold Hammer Forged Barrel made from Mil-Spec 4150 Chrome-Moly Vanadium Steel that is Chrome Lined for durability and corrosion resistance. M4 feed ramps are incorporated into the barrel extension and upper to enhance reliable feeding, while a true 5.56×45 NATO chamber ensures that both commercial and higher pressure surplus mil-spec ammunition may be safely used.
The bolt and carrier both pass a thorough Magnetic Particle Inspection (MPI) test for guaranteed structural integrity, and the gas key is properly staked to its mil-spec bolt carrier. All steel parts feature a heavy Mil-Spec Phosphate finish for superior corrosion resistance and durability, while aluminum parts are Type III Hard Coat Anodized.This upper comes equipped with a 9.5″ Flat Dark Earth RIS II Mk18 Quad-Rail Handguard that covers a pinned, low profile gas block at the carbine gas port position and Free Floats the barrel for increased accuracy potential.
MK18 Upper
Notes:
An “AR-15 Pistol” upper assembly has a barrel less than 16” in length. Pistol uppers are only for use on AR-15 pistol lowers and legal Short-Barreled Rifles. Other configurations may violate Federal law.
Installation of AR-15 upper assemblies with certain features including, but not limited to: flash hiders, bayonet lugs, and threaded muzzles may violate state and/or local laws.
Features
- Mil-Spec Upper with Indexing Marks and M4 Feed Ramps. CNC Machined of 7075-T6 Aluminum, Type III Hard Coat Anodized
- Chrome Moly Vanadium Steel Barrel, Cold Hammer Forged, 1:7 Twist, 10.3″ Government Profile, Chrome Lined, Mil-Spec Heavy Phosphate Coated, and HP/MPI Tested
- Pinned Low Profile Gas Block CNC Machined of 4140 hardened steel with Mil-Spec Heavy Phosphate Coating, Carbine Length, Direct Impingement
- Daniel Defense Flash Suppressor, 17-4 PH Stainless Steel, Salt Bath Nitride Finished
- M16 Profile bolt carrier group, Mil-Spec MP Tested, Chrome Lined, Properly Staked Gas Key
- Daniel Defense RIS II MK18 Handguard, CNC Machined of 6061-T6 Aluminum, Type III Hard Coat Anodized
- Daniel Defense Rail Panels Made from Santoprene, Heat Resistant to 300° F
MK18 Upper
Specifications ,
Cartridge | 5.56x45mm NATO |
Finish | |
Material | Aluminum |
Weight | 3.71 Pound |
Barrel Length | 10.3 Inches |
Barrel Material | 4150 Chrome Moly Vanadium Steel |
Barrel Finish | Mil-Spec Heavy Phosphate |
Twist | 1:7 Inches |
Compatible With | AR-15 |
Threads | 1/2″-28 |
Barrel Contour | Government |
Sights | No |
Chrome Lined | Yes |
Gas Block Diameter | 0.75 Inches |
Gas System Length | Carbine |
M4 Feed Ramps | Yes |
Upper Receiver Type | A3 Flat-Top |
Handguard | RIS II Mk18 Quad Rail, Free Float |
Bolt Carrier Assembly Included | Yes |
Muzzle Device | Daniel Defense Flash Hider |
Mil-Spec or Commercial | Mil-Spec |
Compatible With |
AR-15
|
Delivery Information
Shipping Weight | 4.665 Pounds – 4.995 Pounds |
MK18 Upper
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