18" Midlength 6mm ARC Medium M-LOK Upper Assembly - 28378
Out of stock
18″ 6mm ARC Medium Midlength M-LOK Upper Assembly
Advanced ballistics meet meticulous build quality.
The 18″ 6mm ARC M-LOK Upper Assembly is built for precision shooters looking to maximize the potential of the 6mm ARC cartridge. Featuring a nitrided medium-profile barrel, midlength gas system, and 1:7 twist, it offers superb accuracy and smooth cycling. Assembled with a steel nitrided gas block, American-made M-LOK handguard (style may vary), and mil-spec forged upper, this upper is tuned for consistency and reliability. Components are torqued with AEROSHELL 33MS and secured using Permatex 242. BCG and charging handle not included. Backed by a Limited Lifetime Warranty and a Sub-MOA Guarantee.
Specifications
- Barrel Finish: Nitride / Melonite
- Barrel Profile: Medium
- Cartridge: 6mm ARC
- Barrel Length: 18″
- Gas System: Midlength
- Twist Rate: 1:7
- BCG / Charging Handle: Not Included
- Handguard: American-Made M-LOK (style may vary)
- Origin: Made in the USA
| Weight | 65 oz |
|---|---|
| Dimensions | 20 × 5 × 5 in |
| Barrel Finish | Nitride / Melonite |
| Barrel Profile | Medium |
| Cartridge Compatibility | 6mm ARC |
| Barrel Length | 18 |
| Gas System Length | Midlength |
| Twist Rate | 1:7 |
| BCG / Charging Handle | Not Included |
| MPN | 28378 |
| UPC | 28378 |
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.
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