Description
The Primary Weapons MK216 Mod 1 AR-10 308 Win/7.62 NATO 16″ Adjustable Synthetic Stock 20rd Mag is a modern, duty-grade battle rifle engineered for hard use. It delivers the proven power of the .308 Winchester cartridge in a maneuverable 16-inch platform, built with PWS’s proprietary long-stroke piston system for reliable, clean-running performance in demanding conditions. This rifle is drop-in ready for immediate use, requiring no gunsmithing to get you on the range or into the field.
Key Features
- PWS Long-Stroke Piston System: Reduces fouling in the receiver, runs cooler and cleaner than direct impingement, and enhances reliability with a wide range of ammunition.
- Adjustable Gas Block: Tune the system for suppressed or unsuppressed fire, or to dial in performance with different ammo loads.
- 16-Inch Hammer-Forged Barrel: Provides the ideal balance of .308/7.62 NATO ballistic performance and handling for patrol, hunting, or tactical scenarios.
- Enhanced Reliability: The piston system and robust construction are designed to function in adverse conditions where a malfunction isn’t an option.
- Fully Ambidextrous Controls: Includes a safety selector, magazine release, and bolt catch/release for seamless operation from either shoulder.
Specifications & Details
| Caliber | .308 Winchester / 7.62x51mm NATO |
| Barrel Length | 16 inches |
| Overall Length (Stock Extended) | Approx. 35.5 – 38.5 inches (adjustable) |
| Weight (Unloaded) | Approx. 8.8 lbs |
| Operating System | Long-stroke piston |
| Magazine | Includes one 20-round Magpul PMAG |
Weighing in at a manageable 8.8 pounds unloaded, the MK216 Mod 1 handles like a refined tool, not a cumbersome club. The adjustable synthetic stock allows for a perfect length of pull, whether you’re wearing body armor or a light jacket. Its 16-inch barrel is the sweet spot for a fighting rifle—long enough for effective terminal ballistics out to several hundred yards, but short enough to clear doorways and maneuver in and out of vehicles. That said, the real heart of this system is the piston-driven operation. When it comes to home defense or sustained fire, a cleaner-running gun means less chance of a carbon-induced stoppage. This rifle is built for those who prioritize function over fashion, though its sleek, modern lines certainly don’t hurt. At $1892.59, it represents a serious investment in a serious platform.
Who This Rifle Is For
This is for the shooter who needs a .308 that works, every time. It’s for the tactical professional seeking a dependable patrol rifle, the prepared citizen who understands the value of a hard-hitting defensive tool, or the hunter who wants a semi-auto capable of taking medium to large game in thick cover. It’s also an excellent choice for competitive shooters in heavy metal division matches, where reliability under the clock is paramount. The system is designed to be robust and accepts many standard AR-10 pattern parts and accessories, making customization straightforward. Look, if your scenario demands a powerful, adaptable, and supremely reliable semi-automatic rifle, this platform deserves your attention.
Pros & Cons
Pros: Exceptional reliability due to the piston system. Reduced felt recoil and muzzle climb from the adjustable gas block and muzzle device. Fully ambidextrous for left or right-handed shooters. Comes ready to run with a proven Magpul PMAG. Cleaner operation means less maintenance during extended range sessions or courses.
Cons: Higher price point compared to basic direct-impingement AR-10s. Piston systems add some weight to the front end. The proprietary piston system means some standard AR-10 parts, like bolt carrier groups, are not interchangeable. As with all firearms, an FFL transfer is required for firearm purchases when ordering online. This model is available at firearms-missouri.com for Missouri residents and nationwide to compliant states.
Frequently Asked Questions
Q: Is the Primary Weapons MK216 Mod 1 compatible with other AR-10 parts?
A: It uses a standard DPMS-pattern receiver set, so many aftermarket handguards, stocks, and grips will fit. However, the bolt carrier group and gas system are proprietary to PWS’s long-stroke piston design and are not interchangeable with standard DI parts.
Q: Can I mount a suppressor on this rifle?
A: Absolutely. The barrel features a 5/8×24 threaded muzzle, and the adjustable gas block allows you to tune the rifle for optimal function with a suppressor attached, reducing gas blowback and ensuring reliable cycling.
Q: What type of optics mount best on this platform?
A: The flat-top upper receiver has a full-length Picatinny rail, ready for any standard scope mount or red dot. For leveraging the .308’s effective range, a robust 1-8x LPVO or a 3-9x hunting scope from brands like Vortex or Leupold are popular and effective choices.
Consider the Primary Weapons MK216 Mod 1 for your next duty, defense, or hunting rifle.
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