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Daniel Defense AR-15 MK18 Pistol Upper Receiver Assembly Online
The Daniel Defense AR-15 MK18 Pistol Upper Receiver Assembly is produced from Mil-Spec 4150 Chrome-Moly Vanadium Steel and is Chrome Lined for durability and corrosion resistance. It is part of the daniel defense’s complete upper, faithful pursuit of the US Navy’s Mk18 Mod 1 platform. An actual 5.56×45 NATO chamber may use both commercial and higher pressure surplus mil-spec ammunition safely, and M4 feed ramps are included in the barrel extension and ar uppers to improve reliable feeding.
The gas key is securely fastened to its mil-spec bolt carrier, and the bolt and carrier both pass a comprehensive Magnetic Particle Inspection (MPI) test for verified structural integrity. While aluminum regions are Type III Hard Coat Anodized, all steel parts have a solid Mil-Spec Phosphate coating for better corrosion resistance and longevity.
This daniel defense stripped upper has a 9.5″ Flat Dark Earth RIS II Mk18 Quad-Rail Handguard that Free Floats the barrel for more significant accuracy potential and covers a pinned, low-profile gas block at the carbine gas port position. The A4 Flat-Top receiver of the RIS II creates a full-length, unbroken top rail surface that can support a shooter’s preferred optic and iron sight setup while leaving plenty of opportunity to add tactical accessories. The daniel defense 300 blackout upper comes with a charging handle assembly and a daniel defense 11 5 upper and is prepared to be dropped onto any registered SBR small pin lower receiver or handgun.
Notes:
The barrel of an “AR-15 Pistol” upper assembly is shorter than 16″. Only legal short-barreled rifles and AR-15 pistol lowers may be used with pistol uppers. Other arrangements might be illegal under federal law.
Installation of AR-15 upper assemblies with specific features, including flash hiders, bayonet lugs, and threaded muzzles, may be illegal in some local and state jurisdictions.
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
Specifications
Product Information
| Cartridge | 5.56x45mm NATO |
| Finish | Flat Dark Earth |
| Material | Aluminum |
| Weight | 3.71 Pound |
| Barrel Length | 10.3 Inches |
| Twist | 1:7 Inches |
| Threads | 1/2″-28 |
| Barrel Contour | Government |
| Sights | No |
| Barrel Finish | Mil-Spec Heavy Phosphate |
| Chrome Lined | Yes |
| Gas Block Diameter | 0.75 Inches |
| Gas System Length | Carbine |
| M4 Feed Ramps | Yes |
| Upper Receiver Type | A3 Flat-Top |
| Barrel Material | 4150 Chrome Moly Vanadium Steel |
| 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 | 5.040 Pounds |
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