The MK2 is our second custom upper in a 16" variant. Now with a KAK 16" Rifle length gas system and Aero adjustable gas block meaning you can tune it to be one of the softest shooting uppers on the market weather suppressed or unsuppressed.
Each upper ships with a unique checklist noting the ejection pattern, function, lock back on empty, and any buffer/spring recommendations I may have.
The Basics
16" KAK Rifle Length Barrel, Aero Adjustable Gas Block, 15" KAK Mlock Handguard, KAK Hard Chrome BCG, Mil-Spec Upper, and Mil-Spec Charging handle
The Specifics
Barrel:
Manufacturer - KAK
Length/Chamber - 16" 5.56
Twist - 1:7 Twist
Material - 4150 Chrome Moly-Vanadium
Gas System - Rifle Length
Finish - Nitride
Thread Pitch - 1/2x28
Dimpled
1st Rebarrel - FREE
Barrel nut is sequentially torqued down to 50 FT-lbs
If you legit burn out a barrel, like 10,000 -25,000 rounds, and the barrel becomes inaccurate I will rebarrel it for you for free. Good luck.
Bolt Carrier Group:
Bolt Material - 9310 Alloy
Carrier Material - 8620 Alloy
Gas Key Material - 4130 Alloy
Profile - Full Auto
Finish - Chrome
Gas Key Screws - Grade 8 (torqued and staked to Mil-Spec)
Forward Assist Cuts
Mil-Spec Firing Pin (Hard Chrome Coated)
Handguard:
Manufacturer -KAK
Length - 15"
Material - 6061 T6 Aluminum
Finish - Hard Coat Black Anodization
Mounting Platform - Mlock
Barrel Nut - Steel (does not require timing)
Barrel nut torqued to 50 FT-lbs
Upper Receiver:
Material - 7075 T6 Aluminum
Machined from Forged Aluminum
Finish - Type 3 Hardcoat Anodized Black
Standard Forward Assist
Standard Dust Cover
M4 Feed Ramps
NOT T-Marked, if you care...
Charging Handle:
Material - 7075 T6
Machined from Forged Aluminum
Finish - Type 3 Hardcoat Anodized + Teflon Coated for Smoother Operation
Gas Block:
Material - 4140 Steel
Finish - Nitride
Style - Low Profile
Size - .750"
Attachment Method - 2x Set Screws
Dimpled + Rockset
Set screws are torqued to 30 IN-lbs and have High-Temp threadlocker applied for extra security.
Gas Tube:
Length - Rifle
Material - Stainless Steel
A2 Flash Hider:
Manufacturer - KAK Industries
True Mil-Spec A2 Flash Hider
Material - Steel
Thread Pitch - 1/2x28
Caliber - .223/5.56
Comes Timed With a Crush Washer
MK2 - 16" Rifle Length Modern Dissipator - 5.56 Complete Upper
Our stated policy is to not accept returns, but if you accidently ordered the wrong item or there was a mistake or if you have any issue at all send us an email (listed in the "contact us" section) and we will work it out.