Free ground shipping on every contiguous U.S. order · Ships within 1 business day after payment/verification · Upgraded shipping processed same business day when ordered by 9:30 AM ET
Click the image to open it full size. Additional supplier images appear when available.
Why customers choose this item
✓AR15 upper receiver assembly
✓7.62x39 caliber chambering
✓16.1 inch barrel length
✓1:8 twist rate barrel
✓Long stroke piston system
✓PicLok MLOK handguard 15 inch
Product highlights
Complete upper receiver designed for AR-15 platforms chambered in 7.62x39 caliber
Features 16.1 inch barrel with mid length gas system for balanced cycling performance
Utilizes long stroke piston system with adjustable gas system for reliability
Equipped with 15 inch PicLok handguard supporting Picatinny and MLOK accessories
Constructed from T6 7075 forged upper with anodized finish for durability
Includes Radian Raptor ambidextrous charging handle for enhanced user operation
Product description
The Primary Weapons Systems MK116 MOD 2-M Upper Receiver is a complete AR-15 upper receiver designed for rifle assembly and caliber-specific shooting applications.
The Primary Weapons Systems MK116 MOD 2-M Upper Receiver features a 16.1″ barrel chambered in 7.62×39 with a mid-length gas system and 1:8 twist rate. It uses the PWS long stroke piston system with a 3-setting adjustable gas system and includes a Radian Raptor ambidextrous charging handle. The anodized 7075-T6 forged upper receiver is paired with a 15.0″ PicLok handguard supporting M-LOK and Picatinny mounting. This complete upper receiver fits standard AR-15 platforms and includes a muzzle device and free-float handguard configuration. In typical setups, this upper receiver is used for range use or rifle customization requiring a piston-driven system.
Volume pricing for business and agency buyers, plus free ground shipping on most continental U.S. orders.
Business & agency accounts
Bulk discounts
Volume pricing, dedicated account management, ACH payment options, and special sourcing for businesses, agencies, law enforcement, and first responders.