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Perfect Balance of a Cost-Effective Piston System & High-Quality Construction The Primary Weapons Systems MK116 Pro Complete Upper is the perfect balance of a cost-effective piston system and high-quality construction...
Long Stroke Piston Upper with Lightweight PicLok Handguard The PWS MK116 MOD 2-M features the PWS Mid-length long-stroke piston system, and includes a unique PicLok handguard, combining Picatinny and M-LOK...
Combines Agility & Reliability For A Sleek, Efficient Piston Driven Upper Assembly The PWS MK116 MOD 1-M features the PWS Mid-length long-stroke piston system that combines the agility of the...
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