PWS MK116 MOD 2-M Upper 16″ 7.62×39 Black – Long Stroke Piston AR Upper

The PWS MK116 MOD 2-M Upper in 7.62×39 represents Primary Weapon Systems’ commitment to engineering excellence and serious performance. Built around PWS’s proven long stroke piston system, this 16-inch upper delivers enhanced reliability and reduced fouling compared to traditional direct impingement designs — making it an ideal choice for competitive shooters, hunters, and demanding enthusiasts who refuse to compromise.

Constructed from a fully forged upper receiver, the MK116 MOD 2-M showcases exceptional craftsmanship and durability. The free-float handguard features PWS’s patent-pending PicLok technology, offering the flexibility to mount both Picatinny and M-LOK accessories at the front of the firearm — giving you true modularity without sacrificing a clean profile. The design intentionally eliminates the forward assist and incorporates a flared mag well and built-in trigger guard, streamlining the platform while enhancing ergonomics and aesthetics.

Combining a sleek, compact form factor with the hard-hitting performance of the 7.62×39 cartridge, the PWS MK116 MOD 2-M Upper is purpose-built for those who demand more from their AR platform.

At Deep Roots Rifle Co, we carry hard-to-find, high-performance firearms from top manufacturers like Primary Weapon Systems. Whether you’re building your ideal rifle or upgrading your current setup, our knowledgeable staff is ready to help. Order online with fast shipping or stop by our gun store in Eustis, Florida to see our selection in person.