FREE STANDARD SHIPPING ORDERS $250+
AGE VERIFICATION REQUIRED
Are you at least 18 years old?
Are you at least 18 years old?
The PRO2A 20" 6.8 SPC II 1/11 Rifle Length Melonite M-LOK AR-15 Upper introduces an advanced ballistic footprint engineered to maximize the medium-to-long range capabilities of the hard-hitting 6.8 SPC II caliber. Optimized for hunters, precision target shooters, and wildlife managers, this upper receiver assembly utilizes a full 20-inch barrel to squeeze peak velocity and downrange energy extraction from the cartridge. Configured with a true 6.8 SPC II chamber and an ultra-smooth rifle-length gas system, this premium hardware upgrade mounts effortlessly onto any standard AR-15 lower receiver to provide predictable, repeatable sub-MOA precision groupings across flat plains or heavy timber.
| Caliber / Chamber: | 6.8 SPC II (6.8x43mm Architecture) |
| Barrel Length & Contour: | 20 Inches Medium Taper Profile |
| Barrel Material: | 4150 Chrome Moly Vanadium Steel - Made for us by Tactical Kinetics |
| Twist Rate: | 1:11 Twist Ratio Profile |
| Barrel Coating Finish: | QPQ Melonite / Black Nitride Corrosion-Resistant Exterior and Interior Lining |
| Gas System Length: | Rifle-Length Gas System with 0.750" Low Profile Gas Block Set |
| Muzzle Device: | Standard 5/8-24 A2 Flash Hider |
| Upper Receiver Type: | Mil-Spec Forged 7075-T6 Aluminum Receiver, Forward Assist & Port Cover (Type III Hardcoat Anodized) |
| Handguard Profile: | 15 Inch Slim Free-Float Modular M-LOK Rail System with Competition Top Picatinny Rail Layout |
| Manufacturing Origin: | 100% Proudly Made in the USA |
The 6.8 SPC II cartridge bridges the performance gap between traditional small-bore agility and massive large-caliber energy transfer. However, short carbine lengths often truncate the full power potential of this round. The PRO2A 20" Rifle Length Upper extracts the cartridge's full performance capabilities by adding critical barrel length, ensuring complete powder burn, driving bullets faster, and drastically flattening your downrange hunting trajectories.
By pairing a top-tier 4150 steel barrel with an ultra-smooth rifle-length gas system, this upper receiver assembly dampens the cyclic force of the heavy 6.8 projectile down to a remarkably soft, controllable push. Shielded inside and out with an incredibly durable QPQ Melonite anti-corrosion barrier and enveloped in a rigid, lightweight free-float M-LOK handguard, this drop-in assembly delivers an uncompromised, clean-cycling precision powerhouse built to dominate the open field or the target line straight out of the box.
| SKU | P2A68ACT15RIF20-TK |
|---|---|
| Barrel Length | 20 inch |
| Rifle Caliber | 6.8 SPC II |
| Manufacturer | Pro2A Tactical |
