18 inch AR-15 7.62x39 Mid length M-LOK Melonite Upper

100% of 100
Special Price $299.99 Regular Price $419.99
In stock

Why Buy From Us?


Don't see the exact configuration you want? No problem, just let us know. Most of the time we can customize with the parts we have just to your liking.


All our uppers have a Lifetime Warranty to the original purchaser. Some conditions apply - click here for details.

Customer Service

We believe in customer service before and after the sale. We never take days or weeks to respond. Most of the time if you email or leave a message, we usually respond the same day or next business day.

Turnaround Time

Most of our uppers are built to order. Our most important goal is to get your order to you as quickly as possible without sacrificing quality. Please check the live status update on the banner above and/or on our homepage for current processing times.


We always specify the manufacturer of the major components therefore you know what you are getting. We only use quality components from well-known manufacturers.


AR-15 Milspec (Matrix Arms, Anderson Mfg, Aero Precision, PSA, etc) 7075 T6 Aluminum Stripped Upper Receiver w/M4 feed ramps - Forward Assist and Ejection Port Door installed
Kak Industry 18 inch 7.62x39 Mid Length 1/9.5 Twist Melonite 4150 CMV Barrel
Low profile Nitride STEEL gas block
Stainless Steel Mid length gas tube
JE Machine Tech 15 inch M-LOK Slim lightweight Rail (13.5 inch shown but 15 inch included)
Standard 5/8-24 A2 Flash Hider and crush washer
*Optional*: Add an Azimuth Technology 7.62x39 Full Auto Nitride BCG and Standard Charging Handle
*Optional*: Upgrade to an Adjustable Gas Block 
*Optional*: Upgrade to a Black or Stainless Competition Muzzle Brake 
*Optional*: Change to a Magpul FDE Receiver and 15 inch FDE Keymod HC Handguard (See Pictures for example) (choose from options above)

We only use quality parts from reputable manufacturers in the industry.

Kak Industry makes very high quality barrels. Made out of milspec 4150 CMV and melonited for enhanced corrosion resistance and lubricity. 

The JEMT Rail is very high quality and comparable to many other higher end rails that cost 2x or 3x as much. Handguard is lightweight, made from high quality 6061 aluminum and mounting system is rock solid.

Gas Block diameter is 0.750 and is made out of steel (not aluminum).

*Optional* - Add an Azimuth Technology 7.62x39 Full Auto Nitride BCG and charging handle.

*Optional* - Upgrade to an Adjustable Gas Block. Great option if you are using suppressor or just want to fine tune your system.

*Optional* - Like a Magpul FDE colored receiver and hanguard instead? We now offer an Aero Precision Upper Receiver and 15 inch Guntec HC Keymod Rail in Magpul FDE color (see pictures) - choose from options above.

*Optional* - Upgrade 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.

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