12.5 inch AR-15 NR Side Charging 300 Blackout M-LOK Melonite Upper
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All our uppers are carefully assembled and tested and ready to go out of the box. Every component is chosen to ensure a high quality upper is produced. Every upper is custom built to order and we go the extra mile to ensure the finished product is to your specifications.
This 300 Blackout upper starts with a Gibbz Arms G4 Non Reciprocating Side Charging Billet Aluminum receiver, mated to a Tactical Kinetics 12.5 inch 300 Blackout, Pistol Length Gas System, 1:8 Twist, Medium Profile, Nitride/Melonite treated barrel. The Gibbz Arms receiver is a proprietary patented receiver that has a non reciprocating side charging handle - handle stays forward during cycling. Side handle is on the opposite side of ejection port allowing the shooter to quickly charge or recharge the weapon without taking finger off the trigger and eye off the scope. Tactical Kinetics is one of our major partners and they produce high quality, accurate barrels. The Bowden Rail is a free floated system, M-LOK slots on all three sides, full length picatinny rail at the top, lightweight handguard. Barrel Nut is made out of solid steel to ensure a solid mounting system.
Bolt Carrier Group is OPTIONAL. We offer a BCG from Azimuth, M16 Profile, Properly Staked Gas Key, MP Tested, 8620 Carrier, 9310 Bolt, Nitride Treated.
We also offer a CHOICE of Muzzle Devices - upgrade the flash hider to a Black or Stainless Competition Muzzle Brake. This is an enhanced version of the popular style muzzle brakes. The baffles and ports are milled larger to drive pressure up and to keep the muzzle down more effectively.
We can also UPGRADE the GAS BLOCK to an Adjustable Gas Block. Great option if you are using a suppressor or just want to fine tune your system.
UPPER RECEIVER: Gibbz Arms G4 Non Reciprocating Side Charging Billet Aluminum Receiver with Gen 2 Handle, M4 Feed Ramps, Type III Hardcoat Anodized Black (Gibbz Cam Pin Included)
BARREL: 12.5 inch, 300 Blackout Caliber, 4150 Chrome Moly Vanadium Steel, 1:8 Twist, Medium Profile, Nitride/Melonite Treated - made by Tactical Kinetics
HANDGUARD: 10 inch M-LOK Free Floated, Machined out of 6061 T6 Aluminum – made by Bowden Tactical
GAS SYSTEM: Pistol Length, Direct Impingement, Stainless Steel Tube
GAS BLOCK: Low Profile Gas Block, Machined out of 4140 Steel
MUZZLE DEVICE: Standard A2 Flash Hider and Crush Washer
100% MADE IN THE USA
OPTIONAL: UPGRADE Muzzle Device to a Black or Stainless Competition Muzzle Brake
OPTIONAL: ADD an Azimuth Nitride M16 Profile BCG
OPTIONAL: UPGRADE GAS BLOCK to an Adjustable Gas Block
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