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OPTION DETAILS
GAS BLOCK: Standard or Adjustable. Adjustable is a great option if you are using a suppressor or just want to fine tune your system.
MUZZLE DEVICE: Standard A2 Flash Hider or Competition Muzzle Brake. Muzzle Brakes are for recoil reduction. The baffles and ports are milled larger to drive pressure up and to keep the muzzle down more effectively.


Bolt Carrier Group: BCG/CH is Optional. Select Nitride if you need a BCG to complete Upper . All our BCGs are M16 Profile, Properly Staked Gas Key, MP Tested, 8620 Carrier, 9310 Bolt. Nitride is a surface hardening process that creates a tough and slick surface. Standard Charging Handle Included if BCG Option is selected.
Color: Standard Black or FDE or Gray. Standard is Black. Magpul FDE or Magpul Stealth Gray is extra. Look at pictures to see the type/color of receiver and handguard you will receive.
Step up to devastating intermediate-range performance with the Pro2A Tactical 16" 6.8 SPC II Mid Length Melonite M-LOK Upper. Explicitly engineered to deliver significantly more kinetic energy and stopping power than the standard 5.56 NATO cartridge, this complete upper receiver features a heavy-duty 16-inch Melonite barrel with a versatile 1:10 twist rate. Utilizing a finely tuned mid-length gas system to guarantee remarkably smooth cycling and low felt recoil, this upper comes paired with a rigid, free-float M-LOK handguard that completely isolates the barrel. It is the ultimate plug-and-play solution for serious deer and hog hunting, tactical training, and home defense setups without any NFA restrictions.
Originally designed by military marksmen to address the terminal limitations of the 5.56 cartridge, the 6.8 Remington SPC (Special Purpose Cartridge) packs a massive punch. This 16-inch barrel configuration maximizes propellant efficiency, providing an ethical medium-game hunting platform for deer and hogs. It delivers near-.30-30 terminal ballistics from a lightweight, fast-handling AR-15 profile, giving you a substantial ballistic upgrade while using standard lower dimensions.
Managing the violent unlock pressures of a larger cartridge is crucial for extraction reliability. By choosing a mid-length gas system on this 16" upper, the mechanical cycling curve is significantly softened compared to harsher carbine systems. This delays bolt unlock, reduces gas blowback, tames the recoil punch into a predictable linear push, and helps you keep your crosshairs locked on target for immediate follow-up shots.
Built to withstand severe backcountry environments, our Melonite-finished barrel utilizes an advanced QPQ liquid nitriding surface treatment. This process hardens the metal on a molecular level inside the bore, chamber, and exterior profile. The result is maximum wear resistance against high-velocity strings of fire and superior rust protection without sacrificing match-grade accuracy.
Protect your downrange zero from external resting force. The sleek, free-floating M-LOK handguard securely locks to the barrel nut, keeping your bipod pressure or barricade rests from warping natural barrel harmonics. Outfitted with precision M-LOK cutouts at the 3, 6, and 9 o'clock positions, mounting tactical lights, weapon lasers, and ergonomic grips is entirely clean and modular.
*Click here to learn more about our warranty.
| SKU | P2A68GFS12MID16-HT |
|---|---|
| Barrel Length | 16 inch |
| Rifle Caliber | 6.8 SPC II |
| Manufacturer | Pro2A Tactical |