# Primary Weapons Systems MK2 Mod 2 .308 Win 16.1in Black

**Brand:** Primary Weapons
**Category:** AR Style Rifles
**Caliber:** .308 Win

## Specifications

- **Caliber:** .308 Win
- **Barrel Length:** 16.1"
- **UPC:** 811154033598
- **SKU:** UCEHPTewA

## Description

The Primary Weapons Systems MK2 Mod 2 is a semi-automatic AR-style rifle chambered in .308 Win (7.62x51 NATO). It runs PWS's long-stroke piston system with an adjustable gas block and pairs a 16.1-inch stainless steel barrel with a PWS FRC compensator. The rifle ships with an M-LOK handguard, a 20-round magazine, and Magpul furniture.

### Key Specifications
- **Brand:** Primary Weapons Systems
- **Model:** MK2 Mod 2
- **Caliber:** .308 Win
- **Action:** Semi-Auto
- **Capacity:** 20+1
- **Barrel Length:** 16.1"
- **Barrel Material:** Stainless Steel
- **Twist Rate:** 1:10"
- **Trigger:** Mil-Spec

### Detailed Features
- Long-stroke gas piston operating system with an adjustable, three-setting gas block for tuning reliability across different ammunition.
- 16.1-inch barrel fitted with a PWS FRC compensator to manage recoil and muzzle rise.
- M-LOK handguard for mounting lights, grips, and other accessories directly to the rail.
- Ambidextrous controls and a PWS Enhanced grip support use from either shoulder.
- Ships with a Magpul stock and grip for adjustable length of pull and a non-slip shooting interface.

## What Customers Say

*AI-generated insights from customer reviews*

Owners of the MK2 Mod 2 tend to like PWS's piston system for staying cleaner inside than a direct-impingement .308 AR, and reliability reports are generally positive once the adjustable gas block is dialed in for the ammunition being run. A few new owners note the piston setup has a learning curve compared to a simpler DI rifle, and that the added mechanism adds a bit of weight up front.

Ergonomics get favorable comments thanks to the Magpul stock and grip and the ambidextrous controls, which left-handed shooters in particular appreciate. The M-LOK handguard makes it easy to add lights, slings, and grips without extra adapters, though some shooters wish the handguard ran a bit longer for more accessory space.

On value, the MK2 Mod 2 sits at a premium price point relative to many .308 AR-style rifles, and owners generally feel the piston system and FRC compensator justify the cost for anyone planning heavy use or suppressor work. The AR-pattern lower keeps aftermarket grips, triggers, and optics mounts widely compatible.

## Pricing

**4 offers available**

| Vendor | Price |
|--------|-------|
| Deguns | $2499.95 |
| Classicfirearms Com | $2499.95 |
| Buds Gun Shop | $2499.95 |
| Centerfiresystems Com | $2499.99 |

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*Data from [GunsNation](https://gunsnation.com)*