18" Midlength 22 ARC Medium Stainless M-LOK Upper Assembly
Precision-crafted to unlock the full potential of 22 ARC.
Out of stock
18″ Midlength 22 ARC Medium Stainless M-LOK Upper Assembly
The 18″ 22 ARC M-LOK Upper Assembly is built for shooters seeking cutting-edge small-caliber performance in a precision AR-15 package. It features a premium stainless steel medium-contour barrel, optimized for the high-efficiency burn rate of 22 ARC. The mid-length gas system ensures smooth cycling, reduced port pressure, and enhanced accuracy. A nitrided steel gas block, American-made M-LOK handguard (style may vary), and forged upper round out this complete package. Assembled with Permatex 242 and AEROSHELL 33MS for long-term reliability. BCG and charging handle not included.
Why 22 ARC?
Hornady’s 22 ARC delivers flat trajectories, superior wind resistance, and reliable expansion—ideal for precision shooting and hunting in a standard AR-15 platform. It bridges the performance gap between traditional 5.56 and larger calibers without added recoil.
Specifications
- Barrel: 18″ Stainless Steel, Medium Contour
- Gas System: Midlength
- Cartridge: 22 ARC
- Twist Rate: 1:7
- Gas Block Journal: 0.75
- Muzzle Thread: 1/2×28
- Platform: AR-15
- BCG / Charging Handle: Not Included
- Handguard: M-LOK, American-Made (style may vary)
- Origin: Made in the USA
- Warranty: Limited Lifetime
- Guarantee: Sub-MOA with quality ammo
| Weight | 96 oz |
|---|---|
| Dimensions | 30 × 5 × 5 in |
| Barrel Finish | Stainless |
| Barrel Profile | Medium |
| Cartridge Compatibility | 22 ARC |
| Barrel Length | 18 |
| Gas System Length | Midlength |
| Twist Rate | 1:8 |
| BCG / Charging Handle | Not Included |
| UPC | 28750 |
Compliance
NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.